Search

Who dies in a heat wave? How to help protect the vulnerable in our communities

<a href="https://theconversation.com/profiles/myles-david-sergeant-1542267">Myles David Sergeant</a>, <a href="https://theconversation.com/institutions/mcmaster-university-930">McMaster University</a> Extreme heat is a silent killer. From time to time, we hear about shocking cases of <a href="https://www.theguardian.com/world/2023/sep/24/football-player-heat-deaths-athlete">football players</a> and other athletes who die suddenly while exerting themselves on hot days. Those deaths are certainly tragic, but statistically they are very rare. Most deaths from extreme heat <a href="https://www.epa.gov/climate-indicators/climate-change-indicators-heat-related-deaths">are in older people</a>, who frequently die alone inside their homes. They often die slowly, as the heat creeps up to and sometimes past body temperature, especially when heat domes park themselves over cities and keep the temperature high all day and all night. When such deaths happen, they rarely make the news. Of all the climate change disasters our world is already experiencing, heat is the top killer, <a href="https://library.wmo.int/viewer/68500/download?file=1335_WMO-Climate-services-Health_en.pdf&type=pdf&navigator=1">as the World Meteorological Organization reported</a>. The planet was more than <a href="https://www.theguardian.com/environment/article/2024/jul/08/temperatures-1-point-5c-above-pre-industrial-era-average-for-12-months-data-shows">1.5 C above the pre-industrial baseline</a> for 12 consecutive months from July 2023 to June 2024. In July this year, we saw the hottest three days ever on record, prompting <a href="https://www.un.org/sg/en/content/sg/press-encounter/2024-07-25/secretary-generals-press-conference-extreme-heat">a special statement from United Nations Secretary-General Antonio Guterres</a>. <h2>Health risks and heat</h2> <a href="https://www.ncbi.nlm.nih.gov/books/NBK499843/">Our bodies are made to dump excess heat</a> when we are too warm, but that process goes into reverse when the air is warmer than our core temperature. Our other main defence, sweating, doesn’t help when humidity saturates the air, making it impossible for our own moisture to evaporate. For the frail and elderly, who are more likely to be labouring with heart troubles, COPD or other challenges, simply sitting still in a heat wave requires an effort equivalent to walking on a treadmill. The effort is not great, but it is <a href="https://doi.org/10.1016/j.cjco.2021.10.002">steady and relentless</a>. It exhausts the body, sometimes to the <a href="https://doi.org/10.1016/S2542-5196(22)00117-6">point of no return</a>. Tracking heat-related deaths is challenging, and it’s changing as authorities become more aware of heat as a contributing or underlying factor to deaths by other causes. <a href="https://doi.org/10.2105/AJPH.2006.100081">A paper published by the American Journal of Public Health</a> points out that the 1995 heat wave in Chicago likely contributed to hundreds more deaths than had first been attributed to heat itself. <h2>Who is at risk?</h2> Many people lack air conditioning or a way to get to a place that has it, such as a library, recreation centre or shopping mall. As a result, too many people in cities are forced to <a href="https://wmo.int/publication-series/2023-state-of-climate-services-health">endure long waves of heat</a> — waves that are occurring more frequently, lasting longer, and reaching higher temperatures — in a trend that appears set to continue getting worse. Air conditioning, <a href="https://www.lpm.org/news/2015-07-24/the-history-of-movie-theaters-and-air-conditioning-that-keeps-film-lovers-cool">once a luxury that drew people to summertime movie theatres on hot nights</a>, has become a necessity. Increasingly, it is also a legal requirement, as cities pass bylaws requiring landlords not to allow the temperature in their tenants’ quarters to rise above a certain level. Toronto has <a href="https://www.toronto.ca/home/311-toronto-at-your-service/find-service-information/article/?kb=kA06g000001xvbiCAA">such a bylaw</a> for rental units that have air conditioning available, capping indoor temps at 26 C between June 2 and Sept. 14. Such laws recognize the vulnerability of tenants who lack control over the temperature in their rental units, making heat death an especially urban tragedy, as confirmed in <a href="https://www150.statcan.gc.ca/n1/en/pub/82-003-x/2024006/article/00001-eng.pdf?st=e6jLNMuq">a recent Statistics Canada study</a> between 2000 and 2020. Deaths from extreme heat were more likely in cities with a higher percentage of renter households. During a single week-long heat wave in June 2021 — the year after the period captured in the Statistics Canada study — <a href="https://www.cbc.ca/news/canada/british-columbia/bc-heat-dome-sudden-deaths-570-1.6122316">B.C.’s chief coroner found that 570 people died from heat-related causes</a> — 79 per cent of them were seniors. <h2>Taking action at the community level</h2> From this Global North perspective, the community members who are most likely to die from extreme heat included: <ul> <li>Those over 65</li> <li>Those with more than one chronic condition (including hypertension, mental health, diabetes, heart disease, lung disease)</li> <li>Socially disadvantaged populations in our communities</li> <li>Those with mobility issues</li> <li>Those experiencing social isolation (living alone)</li> <li>Tenants with lack of air conditioning</li> <li>Those living in an urban heat island</li> </ul> This problem is not going away. Some of the <a href="https://www.intactcentreclimateadaptation.ca/wp-content/uploads/2022/06/UoW_ICCA_2022_04-Irreversible-Extreme-Heat.pdf">actions we can take</a> to protect our most vulnerable community members include: <ul> <li>Increase awareness that excessive heat is not merely uncomfortable, but dangerous.</li> <li>Make sure people are warned about impending heat waves.</li> <li>Advocate for everyone to have access to air conditioning.</li> <li>Check on and support people who live alone, especially those with no air conditioning.</li> <li>Invite people over if you have air conditioning, or help them get to community cooling stations.</li> <li>Help vulnerable people who do not have air conditioning to improvise, by freezing wet cloths, for example, to take out and hang around their necks. Doing this, especially with a fan blowing, can be surprisingly effective.</li> <li>Learn and share the <a href="https://www.canada.ca/en/health-canada/services/publications/healthy-living/fact-sheet-staying-healthy-heat.html">warning signs of heat-related illness</a>.</li> <li>Make sure they drink plenty of water and other replenishing fluids.</li> </ul> While we must do our best to limit climate change to keep our planet from getting ever hotter, we must also make every effort to protect the vulnerable from the impacts of the heat that is already here.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/236829/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/myles-david-sergeant-1542267">Myles David Sergeant</a>, Assistant Clinical Professor, Department of Family Medicine, <a href="https://theconversation.com/institutions/mcmaster-university-930">McMaster University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/who-dies-in-a-heat-wave-how-to-help-protect-the-vulnerable-in-our-communities-236829">original article</a>.

Caring

How do heat protectants for hair work? A chemistry expert explains

<a href="https://theconversation.com/profiles/daniel-eldridge-1494633">Daniel Eldridge</a>, <a href="https://theconversation.com/institutions/swinburne-university-of-technology-767">Swinburne University of Technology</a> Heat can do amazing things to change your hairstyle. Whether you’re using a curling wand to get ringlets, a flat iron to straighten or a hair dryer to style, it’s primarily the heat from these tools that delivers results. This comes with casualties. While your hair is surprisingly tolerant to heat compared with many other parts of your body, it can still only withstand so much. Heat treatment hair appliances frequently operate at over 150°C, with some reportedly <a href="https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2019.00298/full#B13">reaching</a> <a href="https://www.researchgate.net/publication/289291195_Thermal_degradation_of_hair_I_Effect_of_curling_irons">over 200°C</a>. At these temperatures, your hair can end up fried. Many people use heat protectants, often in the form of sprays, to minimise the damage. So how do these protectants work? To answer that, I first have to explain exactly what heat does to your tresses on the molecular level. <h2>What heat does to your hair</h2> A large proportion of your hair is made up of proteins. There are attractive forces between these proteins, known as hydrogen bonds. These bonds play a big role in dictating the shape of your locks. When you heat up your hair, the total attraction of these hydrogen bonds become weaker, allowing you to more easily re-shape your hair. Then, when it cools back down, these attractions between the proteins are re-established, helping your hair hold its new look until the proteins rediscover their normal structure. The cuticle – the outermost protective layer of your hair – contains overlapping layers of cells that lose integrity when they’re heated, damaging this outer protective layer. Inside that outer layer is the cortex, which is rich in a protein called keratin. Many proteins don’t <a href="https://pubmed.ncbi.nlm.nih.gov/21635854/">hold up structurally</a> after intense heating. Think of cooking an egg – the change you see is a result of the heat altering the proteins in that egg, unravelling them into different shapes and sizes. It’s a <a href="https://library.scconline.org/v049n04/33">similar story</a> when it comes to heating your hair. The proteins in your hair are also susceptible to heat damage, reducing the overall strength and integrity of the hair. Heat can also affect substances called melanin and <a href="https://pubmed.ncbi.nlm.nih.gov/21443842/">tryptophan</a> in your hair, resulting in a change in pigmentation. Heat-damaged hair is <a href="https://pubmed.ncbi.nlm.nih.gov/21635854/">harder to brush</a>. The damage is even more devastating if you use heat styling tools such as <a href="https://labmuffin.com/why-you-should-never-straighten-or-curl-wet-hair/">curling irons or straighteners</a> to <a href="https://library.scconline.org/v062n01/23">heat wet hair</a>, as at the high treatment temperatures, the water soaked up by the fibres can violently evaporate. The result of this is succinctly described by science educator and cosmetic chemist Michelle Wong, also known as <a href="https://labmuffin.com/how-do-heat-protectant-hair-products-work/">Lab Muffin</a>. She notes if you heat wet hair this way, “steam will blast through your hair’s structure”. This steam bubbling or bursting through the hair can <a href="https://pubmed.ncbi.nlm.nih.gov/21443842/">cause substantial damage</a>. It’s worth noting hair dryers don’t concentrate heat in the same way as styling tools such as flat irons or curling wands, but you still need to move the hair dryer around constantly to avoid heat building up in one spot and causing damage. Once heat damage is done, regardless of whether it is severe or mild, the best remaining options are symptom management or a haircut. For all of these reasons, when you’re planning to heat treat your hair, protection is a good idea. <h2>How hair protectants work</h2> When you spray on a hair protectant, many possible key ingredients can go to work. They can have <a href="https://library.scconline.org/v062n01/15">daunting-looking names</a> like polyvinyl pyrrolidone, methacrylates, polyquaterniums, silicones and more. These materials are chosen because they readily stick onto your hair, creating a coating, a bit like this: <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=225&fit=crop&dpr=1 600w, https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=225&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=225&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=283&fit=crop&dpr=1 754w, https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=283&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/615002/original/file-20240822-16-beyt90.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=283&fit=crop&dpr=3 2262w" alt="A cartoon of coating attached to a strand of hair." /></a><figcaption>Hair protectant applies a coating to your hair. Author provided</figcaption></figure> This coating is a protective layer; it’s like putting an oven mitt on your hands before you handle a hot tray from the oven. To demonstrate, I created these by examining hair under a microscope before and after heat protectant was applied: <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=293&fit=crop&dpr=1 600w, https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=293&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=293&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=369&fit=crop&dpr=1 754w, https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=369&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/615001/original/file-20240822-16-s2ufqy.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=369&fit=crop&dpr=3 2262w" alt="These high magnification images of untreated hair, and hair sprayed with a heat treatment spray, show what a difference it can make." /></a><figcaption>These high magnification images of untreated hair, and hair sprayed with a heat treatment spray, show how the product coats your hair strands. Author provided</figcaption></figure> Just like an oven mitt, a hair protectant delays the heat penetration, results in less heat getting through, and helps spread out the effect of the heat, a bit like in this image: <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=233&fit=crop&dpr=1 600w, https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=233&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=233&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=293&fit=crop&dpr=1 754w, https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=293&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/615003/original/file-20240822-16-tf7xsj.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=293&fit=crop&dpr=3 2262w" alt="Cartoon demonstrating the difference between heating unprotected and protected hair" /></a><figcaption>Hair protectant can help spread out the effects of the heat. Author provided</figcaption></figure> <a href="https://library.scconline.org/v049n04/33">This helps</a> prevent moisture loss and damage to both the protective surface cell layer (the cuticle) and the protein structure of the hair cortex. For these barriers to work at their best, these heat-protecting layers need to remain bound to your hair. In other words, they stick on really well. For this reason, continued use can sometimes cause a <a href="https://link.springer.com/article/10.1007/s12221-010-0507-9">buildup</a> which can change the feel and weight of your hair. This buildup is not permanent and can be removed with washing. One final and important note: just like when you use a mitt for the oven, heat does still get through. The only way to prevent heat damage to your hair altogether is to not use heated styling tools.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/233206/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/daniel-eldridge-1494633">Daniel Eldridge</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/swinburne-university-of-technology-767">Swinburne University of Technology</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-do-heat-protectants-for-hair-work-a-chemistry-expert-explains-233206">original article</a>.

Beauty & Style

Antarctic heat, wild Australian winter: what’s happening to the weather and what it means for the rest of the year

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/martin-jucker-379172">Martin Jucker</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Australia’s south and east have seen <a href="https://theconversation.com/southern-australia-is-freezing-how-can-it-be-so-cold-in-a-warming-climate-233977">freezing temperatures</a> and <a href="https://www.theguardian.com/australia-news/article/2024/jul/29/australia-winter-weather-forecast-east-coast-colder-records">wild weather</a> this winter. At the same time, the continent as a whole – and the globe – have <a href="https://www.abc.net.au/news/2024-08-03/australia-suffers-cold-winter-weather-despite-mild-forecast/104176284">continued to warm</a>. What’s going on? As ever, it’s hard to pinpoint a single cause for weather events. But a key player is likely an event unfolding high above Antarctica, which itself may have been triggered by a heatwave at surface level on the frozen continent. Here’s what’s happening – and what it might mean for the rest of this year’s weather. <h2>When the stratosphere heats up</h2> Out story begins in the cold air over Antarctica. July temperatures in the stratosphere, the layer of air stretching between altitudes of around 10 and 50 kilometres, are typically around –80°C. The winds are also very strong, averaging about 300 kilometres per hour in winter. These cold, fast winds loop around above the pole in what is called the <a href="https://sites.krieger.jhu.edu/waugh/research/polarvortex">stratospheric polar vortex</a>. Occasionally, persistent high air pressure in the lower atmosphere can influence large-scale waves that extend around the globe and up into the stratosphere. There they cause the strong winds to slow down, and the air high above the pole to become much warmer than normal. In extreme situations the stratospheric winds can completely break down, in what is called a “sudden stratospheric warming” event. These events occur every few years in the northern hemisphere, but only one has ever been observed in the south, in 2002 (though another <a href="https://theconversation.com/the-air-above-antarctica-is-suddenly-getting-warmer-heres-what-it-means-for-australia-123080">almost happened in 2019</a>). <h2>Pushing polar weather our way</h2> Once the polar vortex is disturbed, it can in turn influence the weather at the surface by steering weather systems from the Southern Ocean towards the Equator. However, this is a slow process. The impact at the surface may not be felt until <a href="https://doi.org/10.1175/JCLI-D-22-0425.1">a few weeks or even months</a> after the initial weakening of the stratospheric polar vortex. Once it begins, the stratospheric influence can prevail for more weeks or months, and helps meteorologists make <a href="https://doi.org/10.5194/acp-22-2601-2022">long-range weather forecasts</a>. In climate science terms, the weak stratospheric winds put an atmospheric system called the <a href="http://www.bom.gov.au/climate/sam/">Southern Annular Mode</a> into a negative phase. The main effect of this on surface weather is to bring westerly winds further north. In winter, this means polar air outbreaks can reach places like Sydney more easily. As a result, we see more <a href="https://doi.org/10.1175/JCLI4134.1">rain over much of southern Australia</a>, and snowfall in alpine regions. In spring and summer it means westerly winds blow over the continent before reaching the east coast, bringing warm and dry air to southeastern Australia. The exact impact of a weaker polar vortex depends on how much and for how long the weather systems are being pushed further northward. It will also depend on other weather influencers such as El Niño and the Indian Ocean Dipole. <h1>This winter’s weirdness</h1> Unpicking exactly why any weather event occurs is tricky at the moment, because global weather has been absolutely crazy over the past 12 months or so. Global temperatures are <a href="https://theconversation.com/we-just-blew-past-1-5-degrees-game-over-on-climate-not-yet-213364">much higher than usual</a>, which is making unusual weather very common. But there are indications that the stratosphere is having some influence on our weather this winter. The stratospheric polar vortex started to warm in mid-July, and is about 20°C warmer than the long-term average. At the time of writing, the winds slowed down to about 230 kilometres per hour, 70 kilometres per hour slower than average. These numbers mean that, technically, the event does not qualify as a sudden stratospheric warming. However, further warming may still occur. If we look at how southern hemisphere winds have evolved in the past few weeks, we see a pattern which looks like what we would expect from a sudden stratospheric warming. First, we see warming in the stratosphere which is <a href="https://doi.org/10.1029/2021GL095270">at first accompanied by a poleward shift of weather systems</a>. The stratosphere’s influence then propagates downward and seems to <a href="https://doi.org/10.1175/JCLI-D-22-0425.1">induce many weeks</a> of weather systems shifted towards the equator. This coincides with the period of cold and rainy weather along Australia’s east coast in late July and the beginning of August. Forecasts suggest the Southern Annular Mode will be a long way from normal conditions in the first half of August – four standard deviations below average, which is extremely rare. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=300&fit=crop&dpr=1 600w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=300&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=300&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=377&fit=crop&dpr=1 754w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=377&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=377&fit=crop&dpr=3 2262w" alt="Diagram showing atmospheric warming and winds" /></a><figcaption>How initial warming high in the stratosphere ends up changing winds near the surface and pushing polar weather further north. <a class="source" href="https://stratobserve.com">Z.D. Lawrence / StratObserve / Annotated by Martin Jucker</a></figcaption></figure> <h1>A surface disturbance</h1> The main reason for the polar vortex to slow down is disturbances from the surface. Weather over the Amundsen Sea near Antarctica in the South Pacific is <a href="https://doi.org/10.1175/JCLI-D-22-0425.1">an important source</a> of these disturbances. This year, we have seen disturbances of this sort. There have been <a href="https://www.theguardian.com/world/article/2024/aug/01/antarctic-temperatures-rise-10c-above-average-in-near-record-heatwave">near-record surface temperatures around Antarctica</a>. These disturbances may be due to the globally high ocean temperatures, or even lingering effects of the <a href="https://doi.org/10.1175/JCLI-D-23-0437.1">eruption of the Hunga Tonga volcano in 2022</a>. But more research will be required to confirm the causes. <h1>What should we expect for the rest of the year?</h1> There are two pathways until the end of the year. One is that the stratospheric winds and temperatures recover to their usual values and no longer influence surface weather. This is what the forecasts from <a href="https://ozonewatch.gsfc.nasa.gov">Ozone Watch</a> seem to suggest. Another is that the stratosphere keeps warming and the winds keep being slower all the way into summer. In this scenario, we would expect a persistent negative Southern Annular Mode, which would mean a spring and potentially even summer with warmer and drier than usual weather over southeastern Australia, and a small ozone hole. The seasonal forecasting models from the European Centre for Medium Range Weather Forecasts <a href="https://x.com/drahbutler/status/1819142206348759170?s=46&t=sayfGwpo3_s310BwYpcdcQ">seem to favour this second scenario</a>. <a href="https://theconversation.com/profiles/martin-jucker-379172">Martin Jucker</a>, Senior Lecturer in Atmospheric Science, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/antarctic-heat-wild-australian-winter-whats-happening-to-the-weather-and-what-it-means-for-the-rest-of-the-year-236067">original article</a>. </div>

Travel Trouble

How often should you wash your sheets and towels?

<a href="https://theconversation.com/profiles/rietie-venter-100529">Rietie Venter</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Everyone seems to have a different opinion when it comes to how often towels and <a href="https://7news.com.au/video/lifestyle/cleaning/dr-karl-on-how-often-you-should-wash-our-sheets-bc-6320410318112">bed sheets should be washed</a>. While many people might wonder whether days or weeks is best, in one survey from the United Kingdom, <a href="https://www.bbc.com/news/newsbeat-61259074">almost half of single men</a> reported not washing their sheets for up to four months at a time. It’s fairly clear that four months is too long to leave it, but what is the ideal frequency? Bed linen and towels are quite different and so should be washed at different intervals. While every week or two will generally suffice for sheets, towels are best washed every few days. Anyway, who doesn’t love the feeling of a fresh set of sheets or the smell of a newly laundered towel? <h2>Why you should wash towels more often</h2> When you dry yourself, you deposit thousands of <a href="https://www.frontiersin.org/articles/10.3389/fmicb.2018.02362/full">skin cells</a> and millions of <a href="https://www.ajicjournal.org/article/S0196-6553(23)00402-9/fulltext">microbes</a> onto the towel. And because you use your towel to dry yourself after a shower or bath, your towel is regularly damp. You also deposit a hefty amount of dead skin, microbes, sweat and oils <a href="https://theconversation.com/your-bed-probably-isnt-as-clean-as-you-think-a-microbiologist-explains-163513">onto your sheets</a> every night. But unless you’re a prolific night sweater, your bedding doesn’t get wet after a night’s sleep. Towels are also made of a thicker material than sheets and therefore tend to stay damp for longer. So what is it about the dampness that causes a problem? Wet towels are a breeding ground for bacteria and moulds. <a href="https://www.qld.gov.au/housing/public-community-housing/public-housing-tenants/looking-after-your-home/safety/mould">Moulds</a> especially love <a href="https://www.asthmaandlung.org.uk/living-with/indoor-air-pollution/allergies">damp environments</a>. Although mould won’t necessarily be visible (you would need significant growth to be able to see it) this can lead to an unpleasant smell. As well as odours, <a href="https://www.nhs.uk/common-health-questions/infections/can-clothes-and-towels-spread-germs/">exposure to these microbes</a> in your towels and sheets can cause <a href="https://aafa.org/allergies/types-of-allergies/insect-allergy/dust-mite-allergy/">asthma</a>, allergic skin irritations, or other <a href="https://wwwnc.cdc.gov/eid/article/11/4/04-1094_article">skin infections</a>. <h2>So what’s the ideal frequency?</h2> For bedding, it really depends on factors such as whether you have a bath or shower just before going to bed, or if you fall into bed after a long, sweaty day and have your shower in the morning. You will need to wash your sheets more regularly in the latter case. As a rule of thumb, once a week or every two weeks should be fine. Towels should ideally be washed more regularly – perhaps every few days – while your facecloth should be cleaned after every use. Because it gets completely wet, it will be wet for a longer time, and retain more skin cells and microbes. Wash your towels at a high temperature (for example, 65°C) as that will <a href="https://pubmed.ncbi.nlm.nih.gov/34465009/">kill many microbes</a>. If you are conscious of saving energy, you can use a lower temperature and add a cup of vinegar to the wash. The vinegar will kill microbes and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8231443/">prevent bad smells</a> from developing. Clean your washing machine regularly and dry the fold in the rubber after every wash, as this is another place microbes like to grow. <h2>Smelly towels</h2> What if you regularly wash your towels, but they still smell bad? One of the reasons for this pong could be that you’ve left them in the washing machine too long after the wash. Especially if it was a warm wash cycle, the time they’re warm and damp will allow microbes to happily grow. Under <a href="https://textbookofbacteriology.net/growth_3.html">lab conditions</a> the number of these bacteria can double every 30 minutes. It’s important to hang your towel out to dry after use and not to leave towels in the washing machine after the cycle has finished. If possible, hang your towels and bedding out in the sun. That will dry them quickly and thoroughly and will foster that lovely fresh, clean cotton smell. Using a dryer is a good alternative if the weather is bad, but outdoors in the sun is always better if possible. Also, even if your towel is going to be washed, don’t throw a wet towel into the laundry basket, as the damp, dirty towel will be an ideal place for microbes to breed. By the time you get to doing your washing, the towel and the other laundry around it may have acquired a bad smell. And it can be difficult to get your towels smelling fresh again. <h2>What about ‘self-cleaning’ sheets and towels?</h2> Some companies sell “quick-dry” towels or “self-cleaning” towels and bedding. Quick-dry towels are made from synthetic materials that are weaved in a way to allow them to dry quickly. This would help prevent the growth of microbes and the bad smells that develop when towels are damp for long periods of time. But the notion of self-cleaning products is more complicated. Most of these products contain <a href="https://www.degruyter.com/document/doi/10.1515/chem-2016-0005/html">nanosilver</a> or copper, antibacterial metals that kill micro-organisms. The antibacterial compounds will stop the growth of bacteria and can be useful to limit smells and reduce the frequency with which you need to clean your sheets and towels. However, they’re not going to remove dirt like oils, skin flakes and sweat. So as much as I would love the idea of sheets and towels that clean themselves, that’s not exactly what happens. Also, excessive use of antimicrobials <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6636436/pdf/idr-12-1985.pdf">such as nanosilver</a> can lead to <a href="https://www.frontiersin.org/articles/10.3389/fmicb.2021.652863/full">microbes becoming resistant</a> to them.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/216083/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/rietie-venter-100529">Rietie Venter</a>, Associate professor, Clinical and Health Sciences, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-often-should-you-wash-your-sheets-and-towels-216083">original article</a>.

Home & Garden

It’s extremely hot and I’m feeling weak and dizzy. Could I have heat stroke?

<a href="https://theconversation.com/profiles/lily-hospers-1060107">Lily Hospers</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/james-smallcombe-1412548">James Smallcombe</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/ollie-jay-114164">Ollie Jay</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a> Australia is braced for a hot, dry summer. El Nino is back, and this year it will occur alongside an <a href="https://www.abc.net.au/news/2023-08-22/positive-indian-ocean-dipole-to-coincide-with-el-nino/102756378">Indian Ocean dipole</a>, a climate pattern which will further amplify this hot and dry effect. Hot weather can place great stress on our bodies. When the environmental conditions exceed the limit at which we can adequately cope, we can suffer from heat-related illnesses. Heat illnesses can vary, from relatively mild heat exhaustion to the potentially life-threatening condition of heat stroke. <h2>What are the signs and symptoms?</h2> If you’re suffering from heat exhaustion, you may feel weakness, nausea, headaches or dizziness. Mild <a href="https://www.health.nsw.gov.au/environment/beattheheat/Pages/heat-related-illness.aspx">symptoms of heat exhaustion</a> can often be treated at home by reducing your levels of physical activity, finding shade, removing excess clothing, hydrating with water and perhaps even taking a cool shower. If left unchecked, heat exhaustion can progress to the far more serious condition of heat stroke, where your core temperature climbs upwards of 40°C. <a href="https://www.health.nsw.gov.au/environment/beattheheat/Pages/heat-related-illness.aspx">Symptoms</a> can develop rapidly and may include confusion, disorientation, agitation, convulsions, or it could even result in a coma. Heat stroke is a medical emergency and requires urgent treatment. Call an ambulance and start rapid, aggressive cooling by immersing the person in cold water (such as a cold bath). If this isn’t possible, apply ice packs to their neck, armpits and groin and cover the skin with lots of cool water. When it comes to cooling someone with suspected heat stroke, the quicker the better: cool first, transport second. <h2>Why do we overheat?</h2> Environmental conditions play an important role in determining our heat stress risk. If the air temperature, humidity and levels of sun exposure are high, we are much more likely to dangerously overheat. When the body gets hot, the heart pumps more warm blood to our skin to help lose heat. As air temperature rises, this way of shedding heat becomes ineffective. When air temperature is higher than the temperature of the skin (normally around 35°C), we start gaining heat from our surroundings. Sweating is by far our most effective physiological means of keeping cool. However, it is the evaporation of sweat from our skin that provides cooling relief. When the air is humid, it already contains a lot of moisture, and this reduces how efficiently sweat evaporates. Our physical activity levels and clothing also impact heat stress risk. When we move, our bodies generate metabolic heat as a by-product. The more intense physical activity is, the more heat we must lose to avoid dangerous rises in core temperature. Finally, clothing can act as an insulator and barrier for the evaporation of sweat, making it even more difficult for us to keep cool. <h2>Who is most vulnerable in the heat?</h2> Some people <a href="https://www.health.nsw.gov.au/environment/beattheheat/Pages/people-most-at-risk.aspx">are at greater risk</a> of developing heat illness than others. This can result from physiological limitations, such as a decreased capacity to sweat, or a reduced capacity to adapt our behaviour. When these two risk factors coincide, it’s a perfect storm of vulnerability. Take, for example, an elderly outdoor agricultural worker. Being aged over 60, their physiological capacity to sweat is reduced. The worker may also be wearing heavy safety clothing, which may further limit heat loss from the body. If they don’t slow down, seek shelter and adequately hydrate, they become even more vulnerable. When a person dies of heat stroke – which is relatively easy to diagnose – heat will be listed as a cause of death on a death certificate. Between 2001 and 2018 in Australia, 473 heat-related deaths were <a href="https://www.sciencedirect.com/science/article/pii/S2212420921006324">officially reported</a>. However, the true association between heat and death is thought to be far greater, with an <a href="https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(20)30100-5/fulltext">estimated 36,000 deaths</a> in Australia between 2006 and 2017. This is because most people who die during extreme heat events do not die from heat stroke. Instead, they they die of <a href="https://www.nejm.org/doi/full/10.1056/nejm199607113350203">other medical complications</a> such as cardiovascular or renal collapse, as additional strain is placed on essential organs such as the heart and kidneys. People with underlying health conditions are more likely to succumb to heat-associated complications before they develop critical core temperature (over 40°C) and heat stroke. In such cases, while the additional physiological strain imposed by the heat probably “caused” the death, the official “cause of death” is often listed as something else, such as a heart attack. This can make understanding the true health burden of extreme heat more difficult. <h2>How to stay safe in the heat</h2> Thankfully, there are effective, low-cost <a href="https://twitter.com/TheLancet/status/1677702906789740545">ways</a> of staying safe in the heat. These include: <img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/215084/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <ul> <li>staying adequately hydrated</li> <li>getting out of the heat to a cooler area indoors or shaded area outdoors</li> <li>loosening or removing clothing</li> <li>cooling down any way you can: <ul> <li>using an electric fan (which can be used at 37°C and below, irrespective of age and humidity)</li> <li>using a cold-water spray</li> <li>applying a cool, damp sponge or cloth</li> <li>wetting clothes and skin</li> <li>having a cool shower or bath</li> <li>applying ice packs or crushed ice in a damp towel on the neck, groin and armpits.</li> </ul> </li> </ul> <a href="https://theconversation.com/profiles/lily-hospers-1060107">Lily Hospers</a>, PhD Candidate, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/james-smallcombe-1412548">James Smallcombe</a>, Post-doctoral Research Associate, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/ollie-jay-114164">Ollie Jay</a>, Professor of Heat & Health; Director of Heat & Health Research Incubator; Director of Thermal Ergonomics Laboratory, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/its-extremely-hot-and-im-feeling-weak-and-dizzy-could-i-have-heat-stroke-215084">original ar</a><a href="https://theconversation.com/its-extremely-hot-and-im-feeling-weak-and-dizzy-could-i-have-heat-stroke-215084">ticle</a>.

Body

Heated argument between economy passengers reignites plane etiquette debate

A 12-second clip of two passengers arguing on a plane has reignited the age-old debate of whether it is acceptable to recline your seat on a plane. The viral video which was originally posted on TikTok and then re-shared on X, has racked up over 8 million views since Thursday. In the video, a frustrated woman was calling out another female passenger for pushing her seat the entire flight, right after they landed. “The whole trip she pushed my seat,” the woman said to a male passenger seated next to the female passenger accused of kicking her seat. “You seen it. You know she did.” “I’m allowed to put my seat back," she yelled repeatedly. Ian Miles Cheong, the user who posted the video on X, defended the woman saying: “She’s allowed to put her seat back. You don’t get to kick it repeatedly just because you want more space.” A few were on the woman's side and praised her for standing up for herself. “You are allowed! Period! You want space in front of you instead of pushing the seat, buy a seat with extra space or get your a** to business class. Reclining was put there for a reason,” one person wrote. “She was patient enough to wait till flight landed," they added. “If the seat is reclinable, recline it,” another commented. "What she’s saying is right. The woman has a right to put her seat back without someone kicking it," a third agreed. <blockquote class="twitter-tweet"> She’s allowed to put her seat back. You don’t get to kick it repeatedly just because you want more space. <a href="https://t.co/WELD7Qh4Re">pic.twitter.com/WELD7Qh4Re</a> — Ian Miles Cheong (@stillgray) <a href="https://twitter.com/stillgray/status/1719881310351863952?ref_src=twsrc%5Etfw">November 2, 2023</a></blockquote> However, others claimed that there was an unwritten rule that you shouldn't recline your seat, especially on a short-haul flight, adding that the recline feature should be scrapped from airplanes. “Putting your seat back in coach is an unspoken thing most people don’t do. It’s really the airline’s fault because they’ve made coach so cramped and tight that putting the seat back shouldn’t even be an option,” one commented. “Airline seats simply shouldn’t be able to recline. It intrudes on the already very little space a person has on the plane for the person behind them,” another added. “Really it’s the airline’s fault for cramming so many people in such a small space. They don’t call it cattle class for nothing,” a third wrote. One user understood both sides of the argument, and blamed the airlines for making the seats so cramped. "It can be annoying sometimes to be behind someone with their seat all the way, but if the airlines didn't want to allow that, it wouldn't happen," they wrote. "You don't kick the seat like a baby. Blame the airline, not the person doing what the airline says is fine." Images: Twitter

Travel Trouble

4 ways to support someone with dementia during extreme heat

<a href="https://theconversation.com/profiles/nikki-anne-wilson-342631">Nikki-Anne Wilson</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Our ability to adapt our behaviour to changes in temperature takes a significant amount of thought and decision making. For example, we need to identify suitable clothing, increase our fluid intake, and understand how to best keep the house cool. A person with dementia may find some or all these things challenging. These and other factors mean, for someone with dementia, extreme heat <a href="https://pubmed.ncbi.nlm.nih.gov/31520832/#:%7E:text=Conclusion%3A%20Heatwaves%20increased%20the%20risk,heat%2Drelated%20Alzheimer's%20disease%20burden.">can be deadly</a>. But as the temperature rises, friends, relatives and carers can help. <h2>El Niño means there are challenges ahead</h2> The recent declaration of <a href="https://www.abc.net.au/news/2023-09-19/bureau-of-meteorology-el-nino-blog/102875154">another El Niño</a> means we need to think about how we can best support those more vulnerable to be safe during the warmer months. Extreme heat and bushfires bring unique challenges for someone with dementia. Bushfires have a significant impact on older people’s mental health. But they generally <a href="https://www.health.act.gov.au/sites/default/files/2023-03/PATH_Impact%20of%202019-20%20Bushfires%20on%20a%20Cohort%20of%20Older%20Adults_REPORT_V3_0.pdf">bounce back</a> quickly. However, for someone with dementia, extreme heat can lead to a <a href="https://www.sciencedirect.com/science/article/pii/S0013935119305110">significant deterioration</a> in their overall health and they may not recover. Emergency evacuations can also be confusing and distressing for a person with dementia, so it is important to think ahead. <h2>Why are people with dementia more at risk?</h2> Dementia can affect the parts of the brain that help <a href="https://academic.oup.com/brain/article/138/11/3360/332653?login=true">regulate</a> our body temperature. Some <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243665">medications</a> can also increase someone’s sensitivity to heat. Problems with memory and thinking associated with dementia <a href="https://www.alzheimers.org.uk/get-support/daily-living/drinking-hydration">means</a> remembering to drink or communicating you are thirsty can be challenging. Heat can affect everyone’s mood. But if someone with dementia becomes dehydrated this can <a href="https://www.alzdiscovery.org/cognitive-vitality/blog/can-dehydration-impair-cognitive-function">increase</a> confusion and agitation, making it harder for them to know how to cool down. A person with dementia can also wander and become lost, which can be dangerous in extreme heat. <h2>4 ways to support someone with dementia</h2> 1. Avoid dehydration and heatstroke Try to avoid dehydration by encouraging someone to drink throughout the day. It’s better to have <a href="https://pubmed.ncbi.nlm.nih.gov/31769256/">small amounts</a> of liquid regularly instead of a large amount all at once. Little and often will help maximise hydration while avoiding sudden trips to <a href="https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/dementia-continence-issues#causes-of-incontinence-in-people-with-dementia">the bathroom</a>. Try to offer different types of drinks, or ice blocks. Placing drinks in sight can help as a reminder to drink. Choose foods with a high liquid content, such as fruit, salads, cool broths and yoghurt. Look out for <a href="https://www.nia.nih.gov/health/hot-weather-safety-older-adults#:%7E:text=Signs%20of%20heat%20stroke%20are,as%20under%20shade%20or%20indoors.">signs of heatstroke</a>, such as increased confusion beyond what the person would usually experience. Heatstroke may be more difficult to spot in someone living with dementia so it is important to check in when possible and to help them cool down if needed. 2. Cool the home Try to modify their home to make it easier to stay cool. Some air-conditioners have complex settings so make sure the temperature is set appropriately and the person with dementia knows how to use the controls. It is important to keep blinds and curtains shut where possible to reduce heat. However, ensure the <a href="https://www.scie.org.uk/dementia/supporting-people-with-dementia/dementia-friendly-environments/lighting.asp">lighting is adequate</a> to avoid falls. Try to support the person to make suitable clothing choices for the season by having cool, lightweight options easily available. 3. Think about communications early If someone with dementia lives alone, consider how you will maintain contact in an emergency. Some people may not realise many landlines don’t work in a power outage, and of course, mobile phones can’t be recharged. Ensure the person with dementia has access to an <a href="https://www.telstra.com.au/support/category/home-phone/uninterruptible-power-supply">uninterruptable power supply</a>. This can help maintain communication for a few hours in a blackout. 4. Have an evacuation plan In case of fire, flash flooding or severe storm, <a href="https://dementiaresearch.org.au/wp-content/uploads/2017/10/2447_DCRC_Prep_natural_disaster_EBook_5.pdf">have an evacuation plan</a>. If the person with dementia attends a day or respite centre, know their plan too. The situation can change quickly in an emergency, and this can be particularly overwhelming for people with cognitive issues. Understand that someone with dementia may become distressed when their routine is disrupted. So be prepared with some simple activities or comfort items, current medications, and any specific medical information. Stay up-to-date with <a href="http://www.bom.gov.au/">current warnings</a> and act early whenever possible. <h2>We can all help</h2> It’s not just carers of people with dementia who can help. We can all ensure people with dementia stay safe and cool this spring and summer. So remember to check in on your relatives, friends and neighbours or arrange for someone to do so on your behalf.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/213987/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/nikki-anne-wilson-342631">Nikki-Anne Wilson</a>, Postdoctoral Research Fellow, Neuroscience Research Australia (NeuRA), <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/4-ways-to-support-someone-with-dementia-during-extreme-heat-213987">original article</a>.

Body

Cooking (and heating) without gas: what are the impacts of shifting to all-electric homes?

<a href="https://theconversation.com/profiles/trivess-moore-12580">Trivess Moore</a>, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a>; <a href="https://theconversation.com/profiles/alan-pears-52">Alan Pears</a>, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a>, and <a href="https://theconversation.com/profiles/joe-hurley-157161">Joe Hurley</a>, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a> Gas connections for all new housing and sub-divisions will be <a href="https://www.premier.vic.gov.au/new-victorian-homes-go-all-electric-2024">banned in Victoria</a> from January 1 next year. The long-term result of the state government’s significant change to planning approvals will be all-electric housing. The ACT made <a href="https://www.climatechoices.act.gov.au/policy-programs/preventing-new-gas-network-connections">similar changes</a> early this year, in line with a shift away from gas across <a href="https://www.bbc.com/news/science-environment-47559920">Europe</a> and <a href="https://www.theguardian.com/environment/2023/jan/19/gas-stove-culture-war-united-states">other locations</a>, although the NSW Premier Chris Minns has <a href="https://www.theguardian.com/australia-news/2023/jul/31/nsw-wont-ban-gas-in-new-homes-as-premier-declares-i-dont-need-another-complication">baulked</a> at doing the same. Around <a href="https://www.energy.vic.gov.au/renewable-energy/victorias-gas-substitution-roadmap">80% of homes</a> in Victoria are connected to gas. This high uptake was driven by gas being seen as more affordable and sustainable than electricity over past decades. The situation has <a href="https://www.iea.org/events/net-zero-by-2050-a-roadmap-for-the-global-energy-system">changed dramatically</a> as renewable electricity generation increases and <a href="https://www.abc.net.au/news/2023-07-27/aemo-wholesale-electricity-prices-fall-impact-power-bills/102654498">costs fall</a>. <a href="https://theconversation.com/all-electric-homes-are-better-for-your-hip-pocket-and-the-planet-heres-how-governments-can-help-us-get-off-gas-207409">Research</a> has suggested for more than a decade that the benefits of all-electric homes <a href="https://bze.org.au/research_release/energy-efficient-buildings-plan/">stack up in many locations</a>. New homes built under mandatory building energy performance standards (increasing from <a href="https://thefifthestate.com.au/innovation/building-construction/victoria-kicks-the-can-down-the-road-again-on-the-national-construction-code/">6 to 7 stars</a> in Victoria in May 2024) need smaller, cheaper heating and cooling systems. Installing reverse-cycle air conditioning for cooling provides a cost-effective heater as a bonus. Savings from not requiring gas pipes, appliances and gas supply infrastructure help to offset the costs of highly efficient electric appliances. Mandating fully electric homes means economies of scale will further reduce costs. <h2>How does this ban help?</h2> To achieve environmentally sustainable development, reforms of planning policy and regulation <a href="https://theconversation.com/sustainable-cities-australias-building-and-planning-rules-stand-in-the-way-of-getting-there-84263">are essential</a> to convert innovation and best practice to mainstream practice. Planning policy is particularly important for apartment buildings and other housing that may be rented or have an owners’ corporation. Retrofits to improve energy efficiency can be difficult in these situations. Banning gas in new and renovated housing will <a href="https://grattan.edu.au/report/getting-off-gas/">cut greenhouse gas emissions</a>. It’s also <a href="https://theconversation.com/gas-cooking-is-associated-with-worsening-asthma-in-kids-but-proper-ventilation-helps-151591">healthier for households</a> and <a href="https://www.sustainability.vic.gov.au/research-data-and-insights/research/research-reports/the-victorian-healthy-homes-program-research-findings">reduces healthcare costs</a> as well as <a href="https://grattan.edu.au/report/getting-off-gas/">energy bills and infrastructure costs</a>. The Victorian government suggests the change will save all-electric households <a href="https://www.premier.vic.gov.au/new-victorian-homes-go-all-electric-2024">about $1,000 a year</a>. Houses with solar will be even better off. The government appears to be offering wide support to ensure these changes happen, but this will need to be monitored closely. Some households will face extra costs for electric appliances and solar panels. The government’s announcement of <a href="https://www.premier.vic.gov.au/new-victorian-homes-go-all-electric-2024">$10 million</a> for Residential Electrification Grants should help with some of these costs while the industry adjusts. There will be impacts and benefits for the local economy. Some jobs may be lost, particularly in the gas appliance and plumbing industry. The government has announced financial support to retrain people and they will still have essential roles in the existing housing sector. Many gas appliances are imported, including ovens, cooktops and instantaneous gas water heaters. Some components of efficient electric products, such as hot water storage tanks, are made locally. Local activities, including distribution, sales, design, installation and maintenance, comprise much of the overall cost. <h2>Challenges of change must be managed</h2> Sustainability benefits will depend on what <a href="https://grattan.edu.au/report/getting-off-gas/">happens with the energy network</a>. We need more renewable energy, energy storage and smarter management of electricity demand. The shift to all-electric homes may mean winter peak demand for heating increases. Energy market operators and governments will have to monitor demand changes carefully to avoid the reliability issues we already see in summer. However, improving energy efficiency, energy storage and demand management will help reduce this load (and household costs). While the benefits are clear for new homes, the changes may <a href="https://www.bsl.org.au/research/publications/enabling-electrification/">increase gas costs and energy poverty</a> for residents of existing housing who don’t shift to efficient electric solutions. The government has reconfirmed financial rebates to help households switch from gas. In addition, existing housing may face building quality and performance issues. Some may require electrical wiring upgrades as part of the transition. Social acceptance of some electric appliances may also be an issue. For example, <a href="https://www.rmit.edu.au/about/schools-colleges/property-construction-and-project-management/research/research-centres-and-groups/sustainable-building-innovation-laboratory/projects/heet-housing-energy-efficiency-transitions">our research</a> has found some households dislike the way heating from reverse cycle air conditioners feels. Others do not like cooking on induction cooktops. Consumer education and modifications to appliances and buildings may be needed to increase acceptance and avoid backlash. Some electric appliances are available overseas but not in Australia. Higher demand may increase the range of imports. For example, floor-mounted heat pumps can make heating feel similar to gas heating while still providing effective cooling. We should not assume electric appliances are all equal. To improve consumer protection, action is needed on weak standards and limited and inconsistent public information. For example, information on noise levels and efficiency under a range of weather conditions must be standardised. Moving housing away from gas is an <a href="https://link.springer.com/book/10.1007/978-981-99-2760-9">important step</a> in the transition to a zero-carbon economy and energy system. Careful management is needed to ensure this transition is effective, accepted and fair. Continued planning reforms are also essential to ensure environmentally sustainable development of housing and communities. Other urgent priorities include urban cooling and greening, and <a href="https://theconversation.com/turning-the-housing-crisis-around-how-a-circular-economy-can-give-us-affordable-sustainable-homes-208745">circular economy approaches</a> to reduce the material and waste impacts of housing and thus the carbon that goes into building and running homes.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/210649/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/trivess-moore-12580">Trivess Moore</a>, Senior Lecturer, School of Property, Construction and Project Management, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a>; <a href="https://theconversation.com/profiles/alan-pears-52">Alan Pears</a>, Senior Industry Fellow, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a>, and <a href="https://theconversation.com/profiles/joe-hurley-157161">Joe Hurley</a>, Associate Professor, Sustainability and Urban Planning, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/cooking-and-heating-without-gas-what-are-the-impacts-of-shifting-to-all-electric-homes-210649">original article</a>.

Home & Garden

Tourists flock to the Mediterranean as if the climate crisis isn’t happening. This year’s heat and fire will force change

<a href="https://theconversation.com/profiles/susanne-becken-90437">Susanne Becken</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> and <a href="https://theconversation.com/profiles/johanna-loehr-1457342">Johanna Loehr</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> Thousands of people on the beach. Children reportedly falling off evacuation boats. Panic. People fleeing with the clothes on their backs. It felt like “the end of the world”, according to <a href="https://www.theguardian.com/world/2023/jul/23/british-tourists-tell-of-nightmare-in-rhodes-fires-greece">one tourist</a>. The fires sweeping through the Greek islands of Rhodes and Corfu are showing us favourite holiday destinations are no longer safe as climate change intensifies. For decades, tourists have flocked to the Mediterranean for the northern summer. Australians, Scandinavians, Brits, Russians all arrive seeking warmer weather. After COVID, many of us have been keen to travel once again. But this year, the intense heatwaves have claimed <a href="https://inews.co.uk/news/world/heatwave-pictures-wildfires-worsen-greece-italy-spain-europe-us-2488556">hundreds of lives</a> in Spain alone. Major tourist drawcards such as the Acropolis in Athens have been closed. Climate scientists are “stunned by the ferocity” of the <a href="https://www.theguardian.com/commentisfree/2023/jul/25/northern-hemisphere-heatwaves-europe-greece-italy-wildfires-extreme-weather-climate-experts">heat</a>. This year is likely to force a rethink for tourists and for tourism operators. Expect to see more trips taken during shoulder seasons, avoiding the increasingly intense July to August summer. And expect temperate countries to become more popular tourist destinations. Warm-weather tourist destinations will have to radically change. <h2>What will climate change do to mass tourism?</h2> Weather is a major factor in tourism. In Europe and North America, people tend to go from northern countries to southern regions. Chinese tourists, like Australians, often head to Southeast Asian beaches. In Europe, the north-south flow is almost hardwired. When Australians go overseas, they often choose Mediterranean summers. Over the last decade, hotter summers haven’t been a dealbreaker. But this year is likely to drive change. You can already see that in the growing popularity of shoulder seasons (June or September) in the traditional Northern Hemisphere summer destinations. Many of us are shifting how we think about hot weather holidays from something we seek to something we fear. This comes on top of consumer shifts such as those related to sustainability and <a href="https://theconversation.com/flight-shaming-how-to-spread-the-campaign-that-made-swedes-give-up-flying-for-good-133842">flight shame</a>. What about disaster tourism? While thrillseekers <a href="https://www.theguardian.com/us-news/2023/jul/22/death-valley-tourism-extreme-weather-california">may be flocking</a> to Death Valley to experience temperatures over 50℃, it’s hard to imagine this type of tourism going mainstream. What we’re more likely to see is more people seeking “<a href="https://www.tandfonline.com/doi/abs/10.1080/09669582.2016.1213849?journalCode=rsus20">last-chance</a>” experiences, with tourists flocking to highly vulnerable sites such as the Great Barrier Reef. Of course, this type of tourism isn’t sustainable long-term. <h2>What does this mean for countries reliant on tourism?</h2> The crisis in Rhodes shows us the perils of the just-in-time model of tourism, where you bring in tourists and everything they need –food, water, wine – as they need it. The system is geared to efficiency. But that means there’s little space for contingencies. Rhodes wasn’t able to easily evacuate 19,000 tourists. This approach will have to change to a just-in-case approach, as in other <a href="https://www.forbes.com/sites/willyshih/2022/01/30/from-just-in-time-to-just-in-case-is-excess-and-obsolete-next/?sh=195cd054daf7">supply chains</a>. For <a href="https://www.sciencedirect.com/science/article/abs/pii/S0261517712002063">emergency services</a>, tourists pose a particular challenge. Locals have a better understanding than tourists of risks and escape routes. Plus tourists don’t speak the language. That makes them much harder to help compared to locals. Climate change poses immense challenges in other ways, too. Pacific atoll nations like Kiribati or Tuvalu <a href="https://www.pacificpsdi.org/assets/Uploads/PSDI-TourismSnapshot-TUV3.pdf">would love</a> more tourists to visit. The problem there is water. Sourcing enough water for locals is getting harder. And tourists use a lot of water – drinking it, showering in it, swimming in it. Careful planning will be required to ensure local carrying capacities are not exceeded by tourism. So does this spell the end of mass tourism? Not entirely. But it will certainly accelerate the trend in countries like Spain away from mass tourism, or “overtourism”. In super-popular tourist destinations like Spain’s Balearic Islands, there’s been an increasing pushback from locals against <a href="https://theconversation.com/were-in-the-era-of-overtourism-but-there-is-a-more-sustainable-way-forward-108906">overtourism</a> in favour of specialised tourism with smaller numbers spread out over the year. Is this year a wake-up call? Yes. The intensifying climate crisis means many of us are now more focused on what we can do to stave off the worst of it by, say, avoiding flights. The pressure for change is growing too. Delta Airlines is being sued over its announcement to go carbon neutral by <a href="https://www.theguardian.com/environment/2023/may/30/delta-air-lines-lawsuit-carbon-neutrality-aoe">using offsets</a>, for instance. <h2>Mountains not beaches: future tourism may look a lot different</h2> You can already see efforts to adapt to the changes in many countries. In Italy, for instance, domestic mountain tourism is <a href="https://www.euromontana.org/en/neve-diversa-how-mountain-tourism-can-adapt-to-climate-change/">growing</a>, enticing people from hot and humid Milan and Rome up where the air is cooler – even if the snow is disappearing. China, which doesn’t do things by halves, is investing in mountain resorts. The goal here is to offer cooler alternatives like northern China’s <a href="https://english.news.cn/20230714/9ae6f89a6b7b433ebde3ec689b87f6db/c.html">Jilin province</a> to beach holidays for sweltering residents of megacities such as Beijing and Shanghai. Some mountainous countries are unlikely to seize the opportunity because they don’t want to draw more tourists. Norway is considering a <a href="https://www.forbes.com/sites/davidnikel/2022/12/03/norway-to-consider-introducing-tourist-tax-from-2024/?sh=710871eb1b27">tourist tax</a>. Forward-thinking countries will be better prepared. But there are limits to preparation and adaptation. Mediterranean summer holidays will be less and less appealing, as the region is a <a href="https://www.unep.org/unepmap/resources/factsheets/climate-change">heating hotspot</a>, warming 20% faster than the world average. Italy and Spain are still <a href="https://joint-research-centre.ec.europa.eu/jrc-news-and-updates/severe-drought-western-mediterranean-faces-low-river-flows-and-crop-yields-earlier-ever-2023-06-13_en">in the grip</a> of a record-breaking drought, threatening food and water supplies. The future of tourism is going to be very different. <img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/210282/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/susanne-becken-90437">Susanne Becken</a>, Professor of Sustainable Tourism, Griffith Institute for Tourism, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> and <a href="https://theconversation.com/profiles/johanna-loehr-1457342">Johanna Loehr</a>, , <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/tourists-flock-to-the-mediterranean-as-if-the-climate-crisis-isnt-happening-this-years-heat-and-fire-will-force-change-210282">original article</a>.

International Travel

How to keep your pets cool in the heat

Now that the weather is warm, extra precautions in the sun are necessary not just for yourself, but for your furry companion. Try these useful tips to help keep Fido and Fluffy safe and cool in the heat all summer long. Give them a trim – If your pet has long hair, consider grooming them seasonally, as shorter hair makes a big difference in their overall temperature. Keep water handy – If you leave the house with your pet, always be sure to have water on you as well as a receptacle from which they can drink to keep your pet cool and hydrated. You can even set up a kiddy pool in your backyard for your dog to play in. Look for shade – If you’re out with your dog midday, try to avoid direct sunlight by locating a shady area for a rest. Follow their lead – If you dog or cat seems most content to stay indoors and enjoy the air conditioning, let them. They can tell if it’s too hot outside for them. Time it right – Avoid going out midday when possible, and take your dog for walks during the mornings and evenings instead. Never leave them in the car – Many animals die every year because irresponsible owners leave them in a car, leading to over-heating. Even if the day seems moderate in temperature, a car can still heat up drastically due to solar heat beaming in through the windows. If you’ll be leaving your car alone, leave your pet at home. Act according to breed – If your pet has a flat-shaped face, such as a pug or Persian cat, they are especially susceptible to the heat as they are unable to cool down through panting as effectively as other breeds can. If in doubt, bring them inside where it is cooler. Image credit: Shutterstock

Family & Pets

Stop your makeup melting in the heat

Party season and soaring temperatures mean one thing – melting makeup! Make sure you don’t end up looking like Alice Cooper this summer with our guide to a face that stays put even when the mercury rises. Blank canvas Exfoliate so that your face is ultra-smooth and products will stay on evenly, rather than migrating to one particularly dry area. After your usual moisturizer, make sure you apply SPF30+ or SPF50+ sunscreen. After all, there’s no point in going to all this trouble if you’re just going to end up looking like a tomato anyway! Then use a primer to take away shine. Another layer might seem counter-productive, but you can imagine what happens to make-up that’s applied to a slippery surface. Dare to bare Too much powder and sweat aren’t a good mix, literally. Powders can clog and looked caked when we start to ‘glow’ on scorching days. Similarly, long-lasting foundations can be too heavy and textured and look too much like make-up. Instead, opt for a light coverage foundation or illuminating tinted moisturiser to keep your look sheer and natural. Cheeks Using a brush, apply a cream blush to the apples of your cheeks. The beauty of a cream blush is that if it starts to budge, you can just blend it back in with your finger. Go easy on the bronzer. Use a shade that’s just one shade darker than your natural skin tone and apply it only where the sun would naturally catch your face. Eye Smokey eyes soon become raccoon eyes in the heat, so keep the natural look going with a creamy, slightly shimmery eye shadow in a coppery shade. Stick-style shadows stay in place very well and are easy to reapply on-the-go. Liquid eyeliner is best avoided in the heat. Use a pencil or at least a waterproof formulation. To avoid your eyebrows melting, go for a light pencil rather than a wax, then finish your eyes with waterproof mascara. Lips Thick gloss can feel a bit gloopy when the temperatures soar, and a heavy lipstick will overwhelm the natural look on your eyes and cheeks. Try a light chubby-stick style lip stain or a tinted lip balm with SPF in it to provide sheer colour and sun protection in one. Staying power It’s really important to ‘set’ your face after you’ve applied it, but it’s a fine line between setting it and adding powder that’s just going to cake. Use a good quality translucent powder just on your T-zone. A little goes a long way so dab it on the back of your hand first, then apply from there. Finally, keep some blotting papers in your handbag. Blotting papers don’t just mattify shine- they actually soak up excess oil and sweat, so they’re perfect for hot days! Image credits: Getty Images

Beauty & Style

Here’s how often you should be washing your dish towels

Easily forgotten job Most people are probably not throwing their dish towels in the washing machine quite often enough. It’s easy to forget them, and after they’ve air-dried, they look ready for another use. But too often, we keep using them long after they’ve gotten dirty, and all we’re really doing is spreading bacteria and germs on everything they touch. “Believe it or not, dish towels can be one of the dirtiest items in your home. From cleaning up spills to wiping off counter tops, they often get used more than they’re cleaned,” said Bailey Carson, head of cleaning at Handy. A study by the American Society of Microbiology showed that half of kitchen towels tested contained some sort of bacterial growth, such as E. coli or staph. Bacteria breeding ground Because dish towels are so absorbent, they are the perfect home for bacteria, mildew and even mould. Your damp, warm towel is also the ideal breeding ground for that bacteria. That smell you associate with your dish towels and washcloths? Yup. That’s mould and mildew. If your towels or cloths smell, it’s time for a wash in very hot water. If they come out of the dryer still smelling less than pleasant? It’s time to get a new set. Stopping the spread But exactly how often DO you need to wash your dish towels to avoid spreading germs? That answer is: It depends. It depends on what exactly you’re using your dish towels for. Are they just for drying your hands after washing them, with maybe a quick use to mop up some spilled water or a food stain on the front of your cupboards? In that case, Julie Finch-Scally, founder of The Duster Dollies, says that it’s all right to reuse that type of towel for three to four days. If you’re using your dish towels to wipe up anything other than your wet hands, they’re getting more use than a towel you use after you shower, and you’ll have to wash them more often than the average amount of time you should wait between washing your bath towels. Other surfaces If you’re using your dish towels to wipe down cutting boards, wash down stovetops, clean up after spills, or even for drying your dishes, you may have to replace them a bit more often. In this case, Liz O’Hanlon, director of Metro Cleaning (UK) Ltd, says, “Ideally you should change your dishcloths once a day. Unless you use the towel to wipe up spillages which include raw meat or fish; then the towel should be washed immediately after use.” Wash together weekly Of course, this doesn’t mean you have to run a load of a few towels every single day. Laura Smith, owner of All Star Cleaning Services, recommends collecting dirty towels in a small bin under your sink and washing them when you’ve got a full load. That way, once you’ve figured out how often you need to wash your bedsheets, you can throw them all in together. Image credits: Getty Images This article originally appeared on <a href="https://www.readersdigest.co.nz/food-home-garden/heres-how-often-you-should-be-washing-your-dish-towels" target="_blank" rel="noopener">Reader's Digest</a>.

Home & Garden

How clean are your towels?

Warning to the germaphobes out there: best look away now! For the rest of you, brace yourself for what we’re about to tell you. A study to come out of the University of Arizona has found enteric bacteria in 89 per cent of E. coli in 25.6 per cent of kitchen tea-towels. From drying the dishes in the kitchen to enveloping yourself in a towel after a bath, towels are actually an absorbent vessel of germs. Disturbing isn’t it?! That amount of bacteria lurking in your towels is enough to rub anyone who values cleanliness up the wrong way. To help lessen the bacteria in your home, here’s a guide to the nasties that could be lurking in your towels and what you can do about it. Bath towels Sure, it sounds harmless enough – bath towels are used to dry your body after you’ve had a lovely shower and you are clean all over. Don’t be fooled, however – every time you dry yourself with a towel, dead skin cells are collected in the fibres. As well as washing bath towels every three to five uses, you should also avoid fabric softeners when washing towels and instead use some vinegar in the load. To help strip away the build-up of detergent, body soil and fabric softener, first wash towels in hot water with one cup of white distilled vinegar. Then, wash again in hot water with your regular detergent. This will clean your towels as well as make them smell fresh and clean even when damp. Face washers As dirt and bacteria tend to get caught in the fabric of your washcloths, depending on how often you use a face cloth, it should really be cleaned after each use. Otherwise you are essentially smearing your pores with bacteria. Kitchen towels Given the amount of food, waste, grime, mess and different liquids are on the go in our kitchens it should come as no surprise to hear that the kitchen towel is the dirtiest of them all. And if you are using a dirty kitchen rag, you may actually be introducing hundreds of thousands of bacteria to your kitchen. To keep kitchen towels clean you should wash them after each use. If this is not practical, try dipping them in diluted bleach and hanging them up to dry. To do this, just fill your sink up with water and two teaspoons of bleach. You should wash your kitchen towels at least once a week. Image: Shutterstock

Home & Garden

5 signs you need new towels

Sadly, even if you have taken good care of your towels, there comes a time in every towel's life when they are no longer useful and need to be replaced. <h3 dir="ltr">5 signs you need new towels</h3> Here are five clear signs it's time to say goodbye to your old faithful bathroom towels. <h3 dir="ltr">1. No longer soft and fluffy</h3> As your towels age, they will lose what you loved about them the most: their fluffy exterior. Once they lose that softness, towels start to feel stiff and scratchy. If this happens to your towels, it might be time for some new ones. Keep your towels softer for longer by following these <a href="https://www.bhg.com.au/how-to-wash-new-towels-the-secret-to-fresh-fluffy-soft-towels">towel washing tips</a>. <h3 dir="ltr">2. Not absorbent</h3> The purpose of a towel is to remove water after your shower. If you find that you have to dry yourself several times before you're actually dry, then it's time to say goodbye. <h3 dir="ltr">3. Rips and holes</h3> A more obvious sign that your towel has seen better days is it's starting to fall apart. Holes, rips and frays mean it is time for new towels. <h3 dir="ltr">4. They smell</h3> A smelly towel is not a good sign. Towels left damp for too long will develop a musty smell. Likewise, if you put them in the wash and forget about them, you will need to rewash them to avoid bacteria growth. If your towel starts to smell after only a few uses, no matter how you wash it, then there's a chance there are bacteria embedded in the fibres, and it's time to toss it out. <h3 dir="ltr">5. They won't stop shedding</h3> New towels will shed to some degree initially. Still, if your towels continue to lose fibres, it could be a sign of poor manufacturing. When searching for a new towel, ensure the cotton is pre-combed. <h3 dir="ltr">How to recycle old towels</h3> Thankfully, there are a few options for your old towels to avoid ending up in landfills. <ul> <li dir="ltr" aria-level="1"> The recycling program, Upparel will take all of your old towels (and other unsellable clothes), and recycle them into furniture and other bits and pieces. </li> <li dir="ltr" aria-level="1"> Call your local animal shelter and see if they need any old towels or sheets. </li> <li dir="ltr" aria-level="1"> Alternatively, your local mechanic might appreciate some old towels and sheets to work with. </li> </ul> Image: Getty

Home Hints & Tips

A heated steering wheel for $20 a month? What’s driving the subscriptions economy

From gym memberships to music and movies, to razors, toilet paper, meal kits and clothes, there’s seemingly no place the subscription economy can’t go. Having conquered the software market – where it gets its own acronym, SaaS (Software as a Service) – the subscription model is now moving into hardware. Car makers are among the first cabs off the rank, using software to turn on and off optional extras. German auto maker BMW is offering “<a href="https://www.theverge.com/2022/7/12/23204950/bmw-subscriptions-microtransactions-heated-seats-feature" target="_blank" rel="noopener">in-car microtransactions</a>” to access options for car buyers in Britain, Korea, Germany, New Zealand and South Africa. A heated steering wheel, for example, has a monthly cost of NZ$20 in New Zealand, and £10 in the UK. Other markets <a href="https://www.drive.com.au/news/bmw-australia-monthly-subscriptions-detailed/" target="_blank" rel="noopener">including Australia</a> will soon follow. In the UK, seven of 13 “digital services” – from heated seats to automatic high beam and driving assistance – are now available in subscription form. “Welcome to microtransaction hell” is how <a href="https://www.pcgamer.com/welcome-to-microtransaction-hell-buy-a-bmw-pay-monthly-for-the-cars-features/" target="_blank" rel="noopener">one headline</a> put it. But that’s probably overselling the onset of a corporate dystopia where “you will own nothing”. BMW’s motives are pretty straightforward – as is most of what’s driving the subscription economy. What is the subscription model? The subscription model means paying a fee for periodical access to a service or product. Until a decade or so ago, it was largely confined to a few select industries, such as the delivery of milk, newspapers and magazines. <figure class="align-center "><img src="https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=400&fit=crop&dpr=1 600w, https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=400&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=400&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/474494/original/file-20220718-68552-hvzp5p.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="From milk and magazines, subscription services have proliferated with digital technology." /><figcaption>From milk and magazines, subscription services have proliferated with digital technology. Shutterstock</figcaption></figure> Other business models had similarities – such as rental businesses – but the point of the subscription model was different. It was not about meeting a demand for a service someone only wanted to use temporarily or could not afford to own outright. It was about locking in a continuing relationship, to maximise “customer lifetime value”. As <a href="https://www.investopedia.com/ask/answers/042715/how-do-subscription-business-models-work.asp" target="_blank" rel="noopener">Investopedia puts it</a>, the subscription model’s focus is on customer retention over customer acquisition: <blockquote> In essence, subscription business models focus on the way revenue is made so that a single customer pays multiple payments for prolonged access to a good or service instead of a large upfront one-time price. </blockquote> This in large part explains why subscription services are now being adopted in markets outside their more obvious fit for things such as streaming news and entertainment. In a broad sense, consumers can now be divided into two groups. One group comprises the “transactional shopper”, who interacts with the vendor once or twice, then disappears. The other group comprises customers whose connection and “investment” in the brand is maintained through their subscriptions. <figure class="align-center "><img src="https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=338&fit=crop&dpr=1 600w, https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=338&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=338&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=424&fit=crop&dpr=1 754w, https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=424&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/474211/original/file-20220715-24-eopgdo.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=424&fit=crop&dpr=3 2262w" alt="The subscriptions model emphasises customer retention over customer acquisition." /><figcaption>The subscriptions model emphasises customer retention over customer acquisition. Shutterstock</figcaption></figure> E-commerce and access Part of the growth in the subscription economy has come from companies riding the e-commerce wave, delivering goods such as meal kits, wine, coffee, baby supplies, pet food, cleaning products, razors and toilet paper. Consultant firm McKinsey has estimated the subscription e-commerce market is <a href="https://www.mckinsey.com/industries/technology-media-and-telecommunications/our-insights/thinking-inside-the-subscription-box-new-research-on-ecommerce-consumers" target="_blank" rel="noopener">doubling in value</a> every year – though that was before the pandemic. It could be well be more now. The other part of the market is represented by BMW’s approach, offering extra features to customers that can only be accessed for a fee. In some cases this may involve standard “upsell” techniques. For example, when you buy a new Peloton exercise bike you’ll be enticed with <a href="https://www.onepeloton.com.au/membership" target="_blank" rel="noopener">subscription offers</a>, such as virtual classes and “customised” training programs, to “reach your goals”. Or increasingly, as with BMW’s heated seats and steering wheels, it can be done with software turning actual bits of hardware on or off. What is BMW’s game? Is BMW’s purpose to gouge its customers for more money through getting them to pay an ongoing fee for something instead of owning it outright? This is not what its subscription structure indicates. The opposite, in fact. Customers can still buy these options outright. A heated steering wheel in the UK, for example, costs <a href="https://www.bmw.co.uk/en/shop/ls/dp/Steering_Wheel_Heating_SFA_gb" target="_blank" rel="noopener">£200</a>, and in New Zealand <a href="https://www.bmw.co.nz/en/shop/ls/dp/Steering_Wheel_Heating_SFA_nz" target="_blank" rel="noopener">NZ$350</a>. But now they can also pay a subscription – for three years (£150, NZ$250), annually (£100, NZ$250) or monthly (£10, NZ$20). These prices represent a strong signal – that the cost of outright ownership is the most economical. It’s unlikely BMW expects anyone to sign up for the annual or three-yearly options. These are probably just to make the outright cost look more attractive. The monthly offering, on the other hand, may lure owners to try out a feature they would otherwise have rejected buying outright at the time of purchase. Indeed, car makers argue the reason they offer so many options as extras is because most owners don’t want them. So this mostly looks like BMW offering a “try before you buy” option. The pitfalls of over-subscribing That said, companies don’t need to have sinister motives for us to have concerns about the spread of the subscription model. The more things we pay for with “micro-payments”, the harder it becomes to keep track of payments. Many of us continue to pay for products and services we don’t use. A survey of 1,000 Australian adults in 2021, for example, found about a third wasted money on unused subscriptions or memberships – losing an average of about <a href="https://www.savings.com.au/savings-accounts/unused-lockdown-subscriptions-are-costing-aussies-200-a-year" target="_blank" rel="noopener">A$200 a year</a>. Deep psychological associations can influence these decisions. Experiments by US marketing professors Jennifer Savary and Ravi Dhar suggests people with lower “<a href="https://academic.oup.com/jcr/article-abstract/46/5/887/5498871" target="_blank" rel="noopener">self-concept</a>” are less likely to sign up for subscriptions – but also less likely to cancel subscriptions they are not using. We may see the subscription model increasingly used in other sectors – including the health and justice systems. For example, a subscription payment may provide a better level of nutritious food for a resident in an aged care facility, or a hospital or even a prison. This is not dissimilar to the way private health insurance premiums are managed, but still presents important justice and equity concerns. So while there’s no reason to exaggerate the dangers of the subscription economy, it’s also prudent for consumers, advocacy groups and governments to ask “What next?”.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/186913/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/louise-grimmer-212082" target="_blank" rel="noopener">Louise Grimmer</a>, Senior Lecturer in Retail Marketing and Associate Head Research Performance, <a href="https://theconversation.com/institutions/university-of-tasmania-888" target="_blank" rel="noopener">University of Tasmania</a> This article is republished from <a href="https://theconversation.com" target="_blank" rel="noopener">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/a-heated-steering-wheel-for-20-a-month-whats-driving-the-subscriptions-economy-186913" target="_blank" rel="noopener">original article</a>. Image: Getty Images

Money & Banking

Heat yourself, not your house: how to survive winter with a 15℃ indoor temperature

How high should you put the heating up over winter? If you don’t mind the bills and ecological impact, you have the encouragement of the World Health Organization to keep the house warm. They recommend an indoor temperature of <a href="https://apps.who.int/iris/bitstream/handle/10665/275839/WHO-CED-PHE-18.03-eng.pdf" target="_blank" rel="noopener">at least 18°</a>, declaring that you face health risks at lower temperatures. This advice is echoed by the <a href="https://www.energy.gov.au/households/household-guides/seasonal-advice/winter" target="_blank" rel="noopener">Australian government</a>. The tone of <a href="https://www.ncbi.nlm.nih.gov/books/NBK535294" target="_blank" rel="noopener">some reports</a> is monitory and severe. Based on these instructions, anyone would feel a reflex to bump up the thermostat. But before you brace for the bill-shock amid soaring energy prices, consider a different approach. Some people cope positively with the freeze and others face deep winter with panic. Given the range of psychological responses, I can only imagine there would be a difference in how people’s health would fare. If I’m full of dread at the prospect of feeling chilly, this stress could aggravate existing health issues. It is entirely possible to avoid heating your entire house to 18℃ to stay warm. If you view your cold house as a project, you can take pleasure in the power of staying warm in your modern cave, while remembering that we evolved to withstand the cold with fewer options than we have today. Staying warm in a cold house Over the last couple of winters, I’ve discovered many strategies for comfortable living at lower room temperatures. To add to traditional methods such as multiple layers of clothing and physical activity, there are now excellent appliances to fend off the chill. Personal heating devices have become rightly popular, such as electrical heated throw rugs to <a href="https://www.jstor.org/stable/90022948" target="_blank" rel="noopener">warm your clothing</a> rather than ambient air. These new devices – think a more flexible electric blanket – are extremely efficient. Canberra energy efficiency enthusiast David Southgate found using these devices rather than heating the air <a href="https://southgateaviation.files.wordpress.com/2020/02/2019-annual-report-v2.pdf" target="_blank" rel="noopener">cut his heating bill</a> by 95%. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=401&fit=crop&dpr=1 600w, https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=401&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=401&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/472222/original/file-20220704-18-sz6rcn.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="electric throw" /></a><figcaption>Electric throw rugs and other personal heating devices are gaining popularity. Shutterstock</figcaption></figure> Personally, I have found adequate clothing makes a temperature of 15℃ acceptable. In fact, dressing warmly poses more risk of overheating with low levels of activity. It’s satisfying to create your own warmth rather than rely on artificially supplied warmth. You start to notice thermodynamic properties of clothing that you’d never appreciate by relying on a thermostat. If you wear a hooded gown, you’ll find not only that your ears are warm from being covered, but your uncovered face becomes flushed. That’s because warmth generated by your body wafts upward to escape through the aperture of the hood. As a result, the air that you breathe is also warm. When it comes to clothing, we can equate warmth simply with insulation. In turn, we assess the insulating qualities of textiles with their thickness or <a href="https://www.abc.net.au/everyday/warmest-materials-fabrics-winter-clothing/101155486" target="_blank" rel="noopener">air-trapping abilities</a>. We often tend to overlook the design of the clothing, which plays a key role in funnelling body warmth to exposed skin. The archetype of the hood was known two millennia before thermostats in both Greece (the garments μαφόρτης and κάλυμμα) and Rome (the garments cucullus, lacerna and tunica palliolata). They’re just as effective today. Wearing a cowl won’t warm up your hands; but if the rest of you is warm – especially your feet – your exposed hands will benefit by the circulation. For anyone unconvinced by this assurance, fingerless gloves are a backstop. The way medical science has catastrophised indoor temperatures lower than 18℃ wouldn’t be so bad if it were only incurious and unimaginative. Alas, there are alarming ecological consequences of a population believing that they’ll automatically get sick in the cold. Carbon emissions from domestic heating are significant. You get a picture from gas bills in Queensland, which go up 1.4 times from summer to winter. In colder states, the figure is <a href="https://www.energycouncil.com.au/analysis/winter-energy-bills-avoid-a-shock" target="_blank" rel="noopener">much higher</a>: 3.5 times in Victoria and 5.2 times in nippy Tasmania. We have to scrutinise if we really need our thermostats pegged at 18℃. Before we accept recommendations on indoor temperatures by medical authorities, we need to know if the science has grappled with different experiences of cold. Future research must distinguish between people in a cool room who feel cold and miserable or feel protected against cold by a range of practical measures. Understanding the effect of these variables is urgent, because current authoritative guidance pushes us into heating our houses more than we have to. For most of the world, that means burning fossil fuel.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/185587/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/robert-nelson-1355694" target="_blank" rel="noopener">Robert Nelson</a>, Honorary Principal Fellow, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722" target="_blank" rel="noopener">The University of Melbourne</a> This article is republished from <a href="https://theconversation.com" target="_blank" rel="noopener">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/heat-yourself-not-your-house-how-to-survive-winter-with-a-15-indoor-temperature-185587" target="_blank" rel="noopener">original article</a>. Image: Getty Images

Home Hints & Tips

Prince George complains about sweltering Wimbledon heat

A video of Prince George has emerged, as the young royal was spotted complaining to his father that he was "too hot" in his suit at Wimbledon. The 8-year-old was the perfect prince as he attended the men's final match with his parents, but with soaring summer temperatures hitting 28 degrees, he found himself struggling in his suit and tie. After hugging Prince William, the young prince initially said he was feeling "ok" but then complained about the temperature as he walked along with his parents. Fans on social media also expressed concern about the youngster being too warm, and Royal Editor Robert Jobson tweeted that while William and Kate were being respectful of the All England Club's formal dress code, nobody would have minded George wearing something less formal. As Prince William and Kate Middleton greeted Wimbledon officials, George was seen saying "it's too hot" to his parents. Kate then advised her son he needed to avoid sitting "in the bright sunshine" and added they are "often in the shade". Photos showed doting father William checking in on his son while he tried to cool himself down, as some viewers took to Twitter to express their concern for the young prince in his suit. One person wrote, "Why do they dress him in a suit and tie and in this heat." Another said, "Poor Prince George in a shirt, tie and jacket in that stifling heat." The young royal then beamed as he shook hands with servicemen and women before the match, and sat watching the men's final like a perfect gentlemen. Serbian tennis champ Novak Djokovic defeated Aussie Nick Kyrgios in the match, as he reigned in his seventh victory at Wimbledon. Image credits: Getty Images

Family & Pets

"Paid off my mortgage" party sparks heated online debate

A heated online debate has been sparked after a woman has been left questioning whether or not she should attend a friends party celebratory “paid off her mortgage” party. The unnamed woman took to the British parenting forum ‘Mumsnet’ to reveal that one of her close friends, who allegedly had help from her family, is celebrating paying off her mortgage. She revealed she “doesn't want to begrudge anyone” but the party “feels a bit fake” to her. She was met with mixed reactions as some agreed that it looks “crass” and “lacks self awareness”, especially during the ongoing global cost of living and housing crisis. However, others made the point that some people want to celebrate milestones that are not linked back to traditional family set ups for example: weddings, christenings and children's birthdays. The mother explained: “A friend of mine is having a party to celebrate paying her mortgage off, I don't begrudge anyone paying off their mortgage as it's a fantastic achievement, but she has had sooo much help from her family etc..” “She's been gifted at least £300,000 over the life of her mortgage. How would you feel about attending such a party ?? It feels a bit fake to me. She went on to say "My husband laughed his socks off when I told him about the party invite he said "Bank of Mum and Dad" paid mortgage off.” One Mumsnet user replied: “I think it's probably an "any excuse for a party" sort of thing - but it's a bit crass/tactless/lacking in self awareness”. However, others thought it was no more “crass” than “any other celebration.” Another valid point made by some users was people celebrate birthdays and their baby's gender reveals so why not celebrate being mortgage free. Image: Getty

Home & Garden

3 surprise benefits of heated towel racks in summer

During the colder months, nothing beats stepping out of the shower and pulling a freshly warmed towel off the rack. But, heated towel racks are useful beyond chilly winter mornings. Here are <a rel="noopener" href="https://www.bhg.com.au/heated-towel-rack-summer" target="_blank">three reasons</a> they can be just as useful during humid summer months too. 1. Beat the humidity Though using a heated towel rack in summer sounds pointless, the racks actually work to dry rather than warm towels - a godsend when high humidity strikes. Drying your towel in humidity can be difficult when it’s still damp from the previous day, that extra bit of drying power can ensure your towel is ready to use when you hit the shower again. Some towel racks also come with temperature control, meaning you can lower the temperature on hot days and still enjoy your freshly dried towels. 2. Save on your energy bill and water use According to Bathroom Butler Australia, a producer of heated towel racks, towels dried on a rack don’t require washing as regularly as air-dried towels. As a result, you can both save hours on doing laundry and reduce how much water you use. Plus, heated towel racks can be used to dry more than just towels and can help you cut down on using the dryer for clothing items such as swimmers and underwear. 3. Stop mould in its tracks Hot showers produce a surprising amount of moisture that even bathroom fans can’t quite combat effectively, leading to mould. Unfortunately, damp fabrics stored in the bathroom - such as towels - aren’t as safe from mould as we might think. Unless your bathroom is well-ventilated, using a heated towel rack can ensure your towels stay mould-free. Image: Getty Images

Home Hints & Tips

How hot is too hot? Here’s how to tell if your dog is suffering during the summer heat

Hot weather can be dangerous to our canine friends. Humans can sweat all over our body, but dogs can only sweat on their paw pads, which is not much use when it comes to shedding body heat. So how hot is too hot to take your dog out? It depends on the dog and their individual risk factors (more on that in a minute). For me, 33℃ is where I start to consider whether or not to take my dogs outside, and try to think of cooler places we could visit. If they were older or heavier, I might not take them out at all on days over 30℃. Dogs can struggle on very humid days so I factor that in, too. Here’s what you need to know about how to care for your dog on a hot day. <a href="https://images.theconversation.com/files/437053/original/file-20211212-23-1o3loh4.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/437053/original/file-20211212-23-1o3loh4.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" alt="spoodle dog" /></a> Dogs with long noses, like Fonzi, have more cooling structures. Lucy Beaumont, <a href="http://creativecommons.org/licenses/by/4.0/" class="license">CC BY</a> <h2>What are the risk factors?</h2> A dog’s main cooling mechanism is panting, which draws air through the nasal cavity and the mouth and over the capillaries found there. This allows for evaporative cooling, just as sweat on our skin does, but it happens inside rather than outside. It’s also a much smaller surface area than our skin, so dogs are generally not as good at shedding body heat as humans. If the dog is overweight, they may have more trouble keeping cool than if they are lean. A dog with underlying health issues such as heart problems may also be at greater risk. Very young or old dogs may have more trouble with temperature regulation. Dogs that have had a chance to get used to warmer temperatures over a month or so are less susceptible to heat distress. Because some cooling occurs in the nasal cavities, dogs with short faces have fewer of these cooling structures and are more susceptible to heat distress. Dogs with long noses have more surface area for cooling in their nasal cavities, and are theoretically more resistant to heat distress as a result. But much depends on the individual dog and its history. <a href="https://images.theconversation.com/files/437054/original/file-20211212-13-1lcms43.JPG?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/437054/original/file-20211212-13-1lcms43.JPG?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" alt="labradoodle" /></a> Dogs with thick coats, like Stella, may struggle to shed heat on a hot day. Lucy Beaumont, <a href="http://creativecommons.org/licenses/by/4.0/" class="license">CC BY</a> <h2>Your dog’s coat plays a role but should we shave them?</h2> Larger or heavier-bodied dogs generally shed heat more slowly than smaller dogs, as is the case across the animal kingdom. For example, smaller penguin species tend to visit warmer climates, while larger penguin species stay in colder climates. <a href="https://images.theconversation.com/files/437114/original/file-20211213-15-wxuu3h.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/437114/original/file-20211213-15-wxuu3h.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=237&fit=clip" alt="" /></a> Dogs from cooler climes – like Kivi Tarro, a Finnish lapphundtend – to have heavy, insulating coats while those from warmer places tend to have thin hair. Melissa Starling, Author provided Dogs from cooler climes tend to have heavy, insulating coats while those from warmer places tend to have thin hair, which helps shed heat quickly. So, would your dog be cooler if you shaved them for summer? It’s true insulation works both ways; cold or hot air outside the body cannot easily penetrate a thick coat and affect core temperature. But a dog is always producing body heat, especially when they are active or excited, and this internal heat may escape slowly through a thick coat. <a href="https://images.theconversation.com/files/437113/original/file-20211213-13-1xxwrzi.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/437113/original/file-20211213-13-1xxwrzi.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=237&fit=clip" alt="" /></a> Kivi Tarro, a Finnish lapphund, shows off his haircut. Melissa Starling, Author provided For many thick-coated, otherwise healthy dogs, it helps to keep their coat free of tangles and dead undercoat during warmer months. This reduces the insulating properties of the coat. Clipping the coat shorter can allow them to stay cool more easily. You could also consider clipping the belly and groin very short. This won’t help much when the dog is active but could help when the dog lies on a cool surface. However, be mindful not to go too short on upper parts of the coat, or the skin can be exposed to sunburn. <h2>How to ‘ask your dog’ how they’re doing</h2> We should always “ask the dog” how they are doing. Signs a dog is too hot include: <ul> <li> panting a lot during the warmer months, even when not exercising </li> <li> seeming lethargic and reluctant to exercise </li> <li> regularly seeking to cool themselves by getting wet, or lying on cool tile or wood floors with as much skin contact as possible. </li> </ul> Always consider the following rules of thumb: <ul> <li> if it’s too hot for you, it’s probably too hot for your dog </li> <li> make sure water is available for drinking or immersing the body in when exercising on hot days </li> <li> know your dog’s panting. Dogs usually have a pant cycle where they pant for a short period and then stop for a few breaths or more and then start again. If they start panting constantly, they may be struggling to cool themselves </li> <li> if they can’t hold a ball or toy anymore, froth at the mouth because they can’t easily swallow, or have trouble drinking due to panting at the same time, get your dog to some shade and let them rest. Monitor for signs of heat stress </li> <li> signs of extreme heat distress include: vomiting, diarrhoea, lethargy, being unsteady on their feet, or limping. Take your dog to the vet immediately if you see these signs. Heat injury can be lethal! </li> <li> pick shady, cool places to let your dog have a run if it’s warm. Go early or late in the day when the temperature has come down a bit. Early mornings are typically cooler than the late afternoon </li> <li> the lack of airflow in cars can turn them into deadly ovens within a few minutes, even if the windows are down. So never leave your dog alone in a car, even for a few minutes.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important; text-shadow: none !important;" src="https://counter.theconversation.com/content/172957/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> </li> </ul> <a href="https://theconversation.com/profiles/melissa-starling-461103">Melissa Starling</a>, Postdoctoral researcher, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a> This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-hot-is-too-hot-heres-how-to-tell-if-your-dog-is-suffering-during-the-summer-heat-172957">original article</a>.

Family & Pets

Over 60

News

Shop

Catalogues

Travel

Health

Lifestyle

Finance

Entertainment

Property

Information

Keep up to date

Search

Who dies in a heat wave? How to help protect the vulnerable in our communities

How do heat protectants for hair work? A chemistry expert explains

Antarctic heat, wild Australian winter: what’s happening to the weather and what it means for the rest of the year

How often should you wash your sheets and towels?

It’s extremely hot and I’m feeling weak and dizzy. Could I have heat stroke?

Heated argument between economy passengers reignites plane etiquette debate

4 ways to support someone with dementia during extreme heat

Cooking (and heating) without gas: what are the impacts of shifting to all-electric homes?

Tourists flock to the Mediterranean as if the climate crisis isn’t happening. This year’s heat and fire will force change

How to keep your pets cool in the heat

Stop your makeup melting in the heat

Here’s how often you should be washing your dish towels

How clean are your towels?

5 signs you need new towels

A heated steering wheel for $20 a month? What’s driving the subscriptions economy

Heat yourself, not your house: how to survive winter with a 15℃ indoor temperature

Prince George complains about sweltering Wimbledon heat

"Paid off my mortgage" party sparks heated online debate

3 surprise benefits of heated towel racks in summer

How hot is too hot? Here’s how to tell if your dog is suffering during the summer heat