Responding to Climate Change
The study, published in Nature Climate Change, examined rising ocean temperatures over the past five decades and compared them with a dozen different models used to project climate change.
It found that while 10 percent of the rising temperatures could be blamed on natural variations, man-made greenhouse gases were the major cause.
The researchers looked at the average temperature in the upper layers of the ocean—from the surface to 700 meters—and found global average ocean warming of around 0.025°C per decade, slightly more than one tenth of a degree warming over 50 years.
The researchers say this kind of warming would not have been possible without human impacts.
Scientists believe that the oceans absorb around 90 percent of atmospheric heat—warning that as temperatures in the atmosphere rise, ocean warming will also become an increasing problem.
Ocean warming has been blamed for events such as coral bleaching. Scientists are also concerned about the impact of fish and plant species from warming oceans—particularly Krill which like to breed in particularly cold water near sea ice.
Sub-surface, deeper ocean warming was noticeably less than the observed Earth surface warming—mainly due to the relatively slow transfer of ocean surface warming to lower depths, according to the researchers.
The latest report, a collaboration from researchers across America, India, Japan and Australia is said to be the most comprehensive look at how the oceans have warmed to date.
Read the full report by clicking here.
Visit EcoWatch's CLIMATE CHANGE page for more related news on this topic.
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Oregano oil is an extract that is not as strong as the essential oil, but appears to be useful both when consumed or applied to the skin. Peakpx / CC by 1.0
By Alexandra Rowles
Oregano is a fragrant herb that's best known as an ingredient in Italian food.
However, it can also be concentrated into an essential oil that's loaded with antioxidants and powerful compounds that have proven health benefits.
<p>Oregano oil is the extract and, although it's not as strong as the essential oil, it appears to be useful both when consumed or applied to the skin. Essential oils, on the other hand, are not meant to be consumed.</p><p>Interestingly, oregano oil is an effective natural antibiotic and antifungal agent, and it may help you lose weight and lower your cholesterol levels.</p>
<h2>What Is Oregano Oil?</h2><p>Botanically known as <em>Origanum vulgare</em>, oregano is a flowering plant from the same family as mint. It's often used as an herb to flavor food.</p><p>Although it's native to Europe, it now grows all over the world.</p><p>Oregano has been popular ever since the ancient Greek and Roman civilizations used it for medicinal purposes. In fact, the name oregano comes from the Greek words "oros," meaning mountain, and "ganos," meaning joy or delight.</p><p>The herb has also been used for centuries as a culinary spice.</p><p>Oregano essential oil is made by air-drying the leaves and shoots of the plant. Once they're dried, the oil is extracted and concentrated by steam distillation.</p><p>Oregano essential oil can be mixed with a carrier oil and applied topically. However, it should not be consumed orally.</p><p>Oregano oil extract, on the other hand, can be produced via several extraction methods using compounds like carbon dioxide or alcohol. It's widely available as a supplement and can often be found in pill or capsule form.</p><p>Oregano contains compounds called phenols, terpenes, and terpenoids. They have powerful antioxidant properties and are responsible for its fragrance:</p><ul><li><strong>Carvacrol.</strong> The most abundant phenol in oregano, it has been shown to stop the growth of several different types of bacteria.</li><li><strong>Thymol.</strong> This natural antifungal can also support the immune system and protect against toxins.</li><li><strong>Rosmarinic acid.</strong> This powerful antioxidant helps protect against damage caused by free radicals.</li></ul><p>These compounds are thought to underlie oregano's many health benefits.</p><p>Here are 9 potential benefits and uses of oregano oil.</p><h2>1. Natural Antibiotic<a target="_blank"><br></a></h2><p><a href="https://www.healthline.com/nutrition/6-oregano-benefits" target="_blank">Oregano</a> and the carvacrol it contains may help fight bacteria.</p><p>The <em>Staphylococcus aureus</em> bacterium is one of the most common causes of infection, resulting in ailments like food poisoning and skin infections.</p><p>One particular study looked at whether oregano essential oil improved the survival of 14 mice infected with <em>Staphylococcus aureus</em>.</p><p>It found that 43% of the mice given oregano essential oil lived past 30 days, a survival rate nearly as high as the 50% survival rate for mice that received regular antibiotics.</p><p>Research has also shown that oregano essential oil may be effective against some potentially antibiotic-resistant bacteria.</p><p>This includes <em>Pseudomonas aeruginosa</em> and <em>E. coli</em>, both of which are common causes of <a href="https://www.healthline.com/nutrition/uti-home-remedies/" target="_blank">urinary</a> and respiratory tract infections.</p><p>Although more human studies on the effects of oregano oil extract are needed, it contains many of the same compounds as oregano essential oil and may offer similar health benefits when used as a supplement.</p><p><strong>SUMMARY</strong></p><p><strong></strong>One mouse study found oregano essential oil to be almost as effective as antibiotics against common bacteria, though much more research is needed.</p>
<h2>2. May Help Lower Cholesterol</h2><p>Studies have shown that oregano oil may help <a href="https://www.healthline.com/nutrition/how-to-lower-cholesterol" target="_blank">lower cholesterol</a>.</p><p>In one study, 48 people with mildly high cholesterol were given diet and lifestyle advice to help lower their cholesterol. Thirty-two participants were also given 0.85 ounces (25 mL) of oregano oil extract after each meal.</p><p>After 3 months, those given the oregano oil had lower LDL (bad) cholesterol and higher HDL (good) cholesterol, compared with those who were just given diet and lifestyle advice.</p><p>Carvacrol, the main compound in oregano oil, has also been shown to help lower cholesterol in mice that were fed a high fat diet over 10 weeks.</p><p>The mice given carvacrol alongside the high fat diet had significantly lower cholesterol at the end of the 10 weeks, compared with those that were just given a high fat diet.</p><p>The cholesterol-lowering effect of oregano oil is thought to be the result of the phenols carvacrol and thymol.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Studies have shown that oregano may help lower cholesterol in people and mice with high cholesterol. This is thought to be the result of the compounds carvacrol and thymol.</p><h2>3. Powerful Antioxidant</h2><p><a href="https://www.healthline.com/nutrition/antioxidants-explained" target="_blank">Antioxidants</a> help protect the body from damage caused by free radicals.</p><p>It's thought that free radical damage plays a role in aging and the development of some diseases, such as cancer and heart disease.</p><p>Free radicals are everywhere and a natural product of metabolism.</p><p>However, they can build up in the body through exposure to environmental factors, such as cigarette smoke and air pollutants.</p><p>One older test-tube study compared the antioxidant content of 39 commonly used herbs and found that oregano had the highest concentration of antioxidants.</p><p>It found that oregano contained 3–30 times the levels of antioxidants in the other herbs studied, which included thyme, marjoram, and <a href="https://www.healthline.com/nutrition/st-johns-wort/" target="_blank">St. John's wort</a>.</p><p>Gram per gram, oregano also has 42 times the antioxidant level of apples and 4 times that of blueberries. This is thought to be mostly due to its rosmarinic acid content.</p><p>Because oregano oil extract is very concentrated, you need much less oregano oil to reap the same antioxidant benefits as you would from fresh oregano.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Fresh oregano has a very high antioxidant content. In fact, it's much higher than that of most fruits and vegetables, gram per gram. The antioxidant content is concentrated in oregano oil.</p>
<h2>4. Could Help Treat Yeast Infections</h2><p>Yeast is a type of fungus. It can be harmless, but overgrowth can result in gut problems and infections, such as thrush.</p><p>The most well-known yeast is <em><a href="https://www.healthline.com/nutrition/candida-symptoms-treatment" target="_blank">Candida</a></em>, which is the most common cause of yeast infections worldwide.</p><p>In test-tube studies, oregano essential oil has been found to be effective against five different types of <em>Candida</em>, such as those that cause infections in the mouth and vagina. In fact, it was more effective than any other essential oil tested.</p><p>Test-tube studies have also found that carvacrol, one of the main compounds of oregano oil, is very effective against oral <em>Candida</em>.</p><p>High levels of the yeast <em>Candida</em> have also been associated with some gut conditions, such as Crohn's disease and ulcerative colitis.</p><p>A test-tube study on the effectiveness of oregano essential oil on 16 different strains of <em>Candida</em> concluded that oregano oil may be a good <a href="https://www.healthline.com/nutrition/5-diet-tips-against-candida/" target="_blank">alternative treatment</a> for <em>Candida</em> yeast infections. However, more research is needed.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Test-tube studies have shown that oregano essential oil is effective against <em>Candida</em>, the most common form of yeast.</p><h2>5. May Improve Gut Health</h2><p>Oregano may <a href="https://www.healthline.com/nutrition/improve-gut-bacteria/" target="_blank">benefit gut health</a> in a number of ways.</p><p>Gut symptoms like diarrhea, pain, and bloating are common and can be caused by gut parasites.</p><p>One older study gave 600 mg of oregano oil to 14 people who had gut symptoms as a result of a parasite. After daily treatment for 6 weeks, all participants experienced a reduction in parasites, and 77% were cured.</p><p>Participants also experienced a reduction in gut symptoms and tiredness associated with the symptoms.</p><p>Oregano may also help protect against another common gut complaint known as "<a href="https://www.healthline.com/nutrition/is-leaky-gut-real/" target="_blank">leaky gut</a>." This happens when the gut wall becomes damaged, allowing bacteria and toxins to pass into the bloodstream.</p><p>In a study on pigs, oregano essential oil protected the gut wall from damage and prevented it from becoming "leaky." It also reduced the number of <em>E. coli</em> bacteria in the gut. </p><p><strong>SUMMARY</strong></p><p><strong></strong>Oregano oil may benefit gut health by killing gut parasites and protecting against leaky gut syndrome.</p>
<h2>6. May Have Anti-Inflammatory Properties</h2><p>Inflammation in the body is linked to a number of adverse health effects.</p><p>Research has shown that oregano oil may <a href="https://www.healthline.com/nutrition/anti-inflammatory-diet-101/" target="_blank">reduce inflammation</a>.</p><p>One mouse study found that oregano essential oil, along with thyme essential oil, reduced inflammatory markers in those that had artificially induced colitis.</p><p>Carvacrol, one of the key components in oregano oil, has also been shown to reduce inflammation.</p><p>One study directly applied different concentrations of carvacrol to the swollen paws or ears of mice. Carvacrol reduced paw and ear swelling by 35–61% and 33–43%, respectively.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Oregano oil and its components may help reduce inflammation in mice, though human studies are needed.</p><h2>7. Could Help Relieve Pain</h2><p>Oregano oil has been investigated for its painkilling properties.</p><p>One older study in mice tested standard painkillers and <a href="https://www.healthline.com/nutrition/what-are-essential-oils/" target="_blank">essential oils</a>, including oregano essential oil, for their ability to relieve pain.</p><p>It found that oregano essential oil significantly reduced pain in mice, exerting effects similar to those of the commonly used painkillers fenoprofen and morphine.</p><p>The research proposed these results were likely due to the carvacrol content of oregano.</p><p>A similar study found that oregano extract reduced pain in rats, and that the response was dose-dependent, meaning the more oregano extract the rats consumed, the less pain they appeared to feel.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Oregano oil may significantly reduce pain in mice and rats, exerting pain-relieving effects similar to those of some commonly used medications.</p>
<h2>8. May Have Cancer-Fighting Properties</h2><p>A few studies have indicated that carvacrol, one of the compounds of oregano oil, may have cancer-fighting properties.</p><p>In test-tube studies on cancer cells, carvacrol has demonstrated promising results against lung, liver, and breast cancer cells.</p><p>It has been found to inhibit cell growth and cause cancer cell death.</p><p>Although this is promising research, no studies have been carried out on people, so more research is needed.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Preliminary studies have shown that carvacrol — the most abundant compound in oregano oil — inhibits cancer cell growth and causes cell death in lung, liver, and breast cancer cells.</p><h2>9. May Help You Lose Weight</h2><p>Thanks to oregano's carvacrol content, oregano oil may aid weight loss.</p><p>In one study, mice were fed either a normal diet, high fat diet, or high fat diet with carvacrol. Those given carvacrol alongside their high fat diet gained significantly less weight and body fat than those just given a high fat diet.</p><p>Furthermore, carvacrol appeared to reverse the chain of events that can lead to the formation of fat cells.</p><p>More research is needed to demonstrate that oregano oil has a role in weight loss, but it may be worth trying as part of a <a href="https://www.healthline.com/nutrition/healthy-eating-for-beginners/" target="_blank">healthy diet</a> and lifestyle.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Oregano oil may be beneficial for weight loss through the action of carvacrol, though human studies are needed.</p>
<h2>How to Use Oregano Oil</h2><p>Oregano oil extract is widely available in capsule and tablet form. It can be bought from most health food shops or online.</p><p>Because the strength of oregano supplements can vary, it's important to read the directions on the individual packet for instructions on how to use the product.</p><p>Oregano essential oil is also available and can be diluted with a <a href="https://www.healthline.com/health/carrier-oil" target="_blank">carrier oil</a> and applied topically. Note that no essential oil should be ingested.</p><p>There's no standard effective dose of oregano essential oil. However, it's often mixed with around 1 teaspoon (5 mL) of olive oil per drop of oregano essential oil and applied directly to the skin.</p><p>Like other essential oils, keep in mind that oregano essential oil should not be consumed orally.</p><p>If you're interested in taking oregano oil extract but currently taking prescription medications, make sure to consult your healthcare provider before adding it to your regimen.</p><p>In addition, oregano oil extract is not generally recommended for women who are pregnant or breastfeeding.</p><p><strong>SUMMARY</strong></p><p><strong></strong>Oregano oil extract can be purchased in pill or capsule form and taken orally. Oregano essential oil is also available and can be diluted with a carrier oil and applied to the skin.</p><h2>The Bottom Line</h2><p>Oregano oil extract and oregano essential oil are both relatively cheap and readily available.</p><p>Oregano is higher in antioxidants than most fruits and vegetables, and it's packed full of powerful compounds called phenols.</p><p>Oregano also contains compounds that may be effective against bacterial and fungal infections, inflammation, and pain, among other conditions.</p><p>Overall, it appears to have several health benefits and may be useful as a natural treatment for some common health complaints.</p>
<p><em>Reposted with permission from<a href="https://www.healthline.com/" target="_blank"> Healthline</a>. For detailed source information, please view the original article on <a href="https://www.healthline.com/nutrition/9-oregano-oil-benefits-and-uses#The-bottom-line" target="_blank">Healthline</a>.</em></p>From Your Site Articles
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Brazilian President Jair Bolsonaro meets Ronaldo Caiado, governor of the state of Goiás on June 5, 2020. Palácio do Planalto / CC BY 2.0
Far-right Brazilian President Jair Bolsonaro, who has presided over the world's second worst coronavirus outbreak after the U.S., said Tuesday that he had tested positive for the virus.
<p>The news comes after Bolsonaro has repeatedly dismissed the risk posed by the virus both to himself and others and argued against social distancing measures as a threat to the economy.</p><p>"In my particular case, because of my history as an athlete, in case I were contaminated by the virus I wouldn't need to worry. I wouldn't feel anything or it would be, at most, similar to a little flu, or a little cold," he said during a national television address March 24, as <a href="https://abcnews.go.com/Health/wireStory/ap-explains-bolsonaro-downplayed-virus-fears-months-71663418" target="_blank">The Associated Press reported</a>.</p>
<p>His approach has earned him protests at home and worldwide criticism for allowing the virus to spread in his country, <a href="https://www.nytimes.com/2020/07/07/world/americas/brazil-bolsonaro-coronavirus.html?auth=login-googl" target="_blank">The New York Times reported</a>. He fired one health minister in April over disagreements about how to respond to the pandemic and forced a second to quit less than a month later. The current health minister is an active-duty general with no medical experience. Brazil has now reported more than 1.6 million confirmed cases and more than 65,000 deaths, falling second only to the U.S. in both categories.</p><p>Bolsonaro took a test for the virus Monday after falling ill with fatigue, muscle pain and a fever. His illness occurred two days after he attended a Fourth of July lunch at the home of Brazil's U.S. Ambassador Todd Chapman, where Bolsonaro and other attendees were pictured sitting side by side without masks. The ambassador and his wife have since tested negative for the virus but are remaining in quarantine.</p>
<div id="30022" class="rm-shortcode" data-rm-shortcode-id="9e5f6f78f46c6841b83cc759e8840506"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1279475037574176768" data-partner="rebelmouse"><div style="margin:1em 0">Na Embaixada dos EUA, celebrando o 4 de julho, dia da independência americana. https://t.co/CqtgUNxiSL</div> — Ernesto Araújo (@Ernesto Araújo)<a href="https://twitter.com/ernestofaraujo/statuses/1279475037574176768">1593885595.0</a></blockquote></div>
<p>So far, Bolsonaro's diagnosis has not changed his tone. As he announced his test results, he continued to focus on the importance of reopening Brazil's economy.</p><p>"You can't just talk about the consequences of the virus that you have to worry about. Life goes on. Brazil needs to produce. You need to get the economy in gear,″ he said, according to The Associated Press.</p><p>He was also widely criticized on social media for taking off his mask while speaking to reporters about his diagnosis, <a href="https://indianexpress.com/article/trending/trending-globally/brazilian-president-takes-off-mask-after-announcing-he-tested-positive-for-covid-19-6495517/" target="_blank">The Indian Express reported</a>.</p>
<div id="4ed4f" class="rm-shortcode" data-rm-shortcode-id="512bc5e4d7e023188c02f9b493b51c16"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1280543922331123713" data-partner="rebelmouse"><div style="margin:1em 0">Bolsonaro, who has tested positive for coronavirus, just exposed every journalist to the virus, in case you were wo… https://t.co/cuTpNEwiMd</div> — Brian Tyler Cohen (@Brian Tyler Cohen)<a href="https://twitter.com/briantylercohen/statuses/1280543922331123713">1594140437.0</a></blockquote></div>
<p>Bolsonaro is an ally of U.S. President <a href="https://www.ecowatch.com/tag/donald-trump" target="_self">Donald Trump</a>, <a href="https://www.npr.org/sections/coronavirus-live-updates/2020/07/07/888137097/brazilian-president-jair-bolsonaro-tests-positive-for-coronavirus" target="_blank">NPR reported</a>, who has also been <a href="https://www.ecowatch.com/us-coronavirus-death-toll-2646357716.html" target="_self">criticized</a> for dismissing the severity of the pandemic. Like Trump, Bolsonaro has touted the benefits of hydroxychloroquine for treating the coronavirus, an anti-malaria drug that the Food and Drug Administration <a href="https://www.ecowatch.com/coronavirus-malaria-drugs-2646183392.html" target="_self">has warned</a> against taking for COVID-19.</p><p>But Bolsonaro said his medical team was treating him with the drug on Tuesday and that he was feeling "very well," according to The New York Times.</p><p>Politicians and <a href="https://www.ecowatch.com/tag/public-health" target="_self">public health</a> experts said that Bolsonaro's diagnosis was unlikely to change Brazil's approach to the virus unless he grew seriously ill. The country is currently in the process of reopening.</p>
<p>"My concern is that he will use this to say, 'See, I'm fine, if you catch this you will survive,'" Rio de Janeiro community activist Day Medeiros told The New York Times. "Everything that happens to him has real repercussions in how people behave here. This is really serious."</p><p>But one analyst thought the diagnosis would ultimately harm Bolsoarno's political career.</p><p>"Despite publicly shrugging off his positive test for Covid-19, it marks the beginning of the end of his administration," Robert Muggah, director of Rio-based think tank the Igarape Institute, told <a href="https://www.cnbc.com/2020/07/08/coronavirus-bolsonaros-diagnosis-marks-beginning-of-the-end-for-his-administration.html" target="_blank">CNBC in an email</a>. "It is yet another visible expression of his recklessness and ineptitude."</p>
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Although natural gas produces fewer greenhouse gas emissions and other pollutants than coal or oil, it is a major contributor to climate change, an urgent global problem. Skitterphoto / PIxabay
By Emily Grubert
Natural gas is a versatile fossil fuel that accounts for about a third of U.S. energy use. Although it produces fewer greenhouse gas emissions and other pollutants than coal or oil, natural gas is a major contributor to climate change, an urgent global problem. Reducing emissions from the natural gas system is especially challenging because natural gas is used roughly equally for electricity, heating, and industrial applications.
<p>There's an emerging argument that maybe there could be a direct substitute for fossil natural gas in the form of renewable natural gas (RNG) – a renewable fuel designed to be nearly indistinguishable from fossil natural gas. RNG could be made from biomass or from captured carbon dioxide and electricity.</p><p>Based on what's known about these systems, however, I believe climate benefits might not be as large as advocates claim. This matters because RNG isn't widely used yet, and decisions about whether to invest in it are being made now, in places like <a href="https://www.cleanenergyfuels.com/blog/influx-of-california-rng-fuels-local-economy-protects-climate" target="_blank">California</a>, <a href="https://www.oregon.gov/energy/Get-Involved/Pages/RNG-Advisory-Committee.aspx" target="_blank">Oregon</a>, <a href="http://biomassmagazine.com/articles/15172/inslee-signs-bill-to-promote-rng-in-state-of-washington" target="_blank">Washington</a>, <a href="https://energynews.us/2019/12/03/midwest/michigan-utilities-see-role-for-renewable-natural-gas-but-cost-barrier-remains/" target="_blank">Michigan</a>, <a href="https://investor.southerncompany.com/information-for-investors/latest-news/latest-news-releases/press-release-details/2020/Southern-Company-Gas-grows-leadership-team-to-focus-on-climate-action-innovation-and-renewable-natural-gas-strategy/default.aspx" target="_blank">Georgia</a> and <a href="https://www.epa.gov/natural-gas-star-program/rng-interconnect-guideline-new-york" target="_blank">New York</a>.</p><p>As someone who studies <a href="https://scholar.google.com/citations?user=3RI02dcAAAAJ&hl=en" target="_blank">sustainability</a>, I research how decisions made now might influence the environment and society in the future. I'm particularly interested in how energy systems contribute to climate change.</p><p>Right now, energy is responsible for most of the pollution worldwide that <a href="https://www.ipcc.ch/report/ar5/syr/" target="_blank">causes climate change</a>. Since energy infrastructure, like power plants and pipelines, <a href="http://emilygrubert.org/wp-content/uploads/2019/02/eia_860_2017_map.html" target="_blank">lasts a long time</a>, it's important to consider the climate change emissions that society <a href="https://doi.org/10.1038/s41586-019-1364-3" target="_blank">is committing to</a> with new investments in these systems. At the moment, renewable natural gas is more a proposal than reality, which makes this a great time to ask: What would investing in RNG mean for climate change?</p>
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What RNG Is and Why it Matters
<p>Most equipment that uses energy can only use a single kind of fuel, but the fuel might come from different resources. For example, you can't charge your computer with gasoline, but it can run on electricity generated from coal, natural gas or solar power.</p><p>Natural gas is almost pure methane, <a href="https://www.eia.gov/energyexplained/natural-gas/" target="_blank">currently sourced</a> from raw, fossil natural gas produced from <a href="https://www.eia.gov/energyexplained/natural-gas/where-our-natural-gas-comes-from.php" target="_blank">deposits deep underground</a>. But methane could come from renewable resources, too.</p><p><span></span>Two main methane sources could be used to make RNG. First is <a href="https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks" target="_blank">biogenic methane</a>, produced by bacteria that digest organic materials in manure, landfills and wastewater. Wastewater treatment plants, landfills and dairy farms have captured and used biogenic methane as an energy resource for <a href="http://emilygrubert.org/wp-content/uploads/2019/02/eia_860_2017_map.html" target="_blank">decades</a>, in a form usually called <a href="https://www.eia.gov/energyexplained/biomass/landfill-gas-and-biogas.php" target="_blank">biogas</a>.</p><p>Some biogenic methane is generated naturally when organic materials break down without oxygen. Burning it for energy can be beneficial for the climate if doing so prevents methane from escaping to the atmosphere.</p><p>In theory, there's enough of this climate-friendly methane available to replace <a href="https://iopscience.iop.org/article/10.1088/1748-9326/ab9335/meta" target="_blank">about 1% of the energy</a> that the current natural gas system provides. The largest share is found at landfills.</p><p>The other source for RNG doesn't exist in practice yet, but could theoretically be a much larger resource than biogenic methane. Often called <a href="https://www.powermag.com/why-power-to-gas-may-flourish-in-a-renewables-heavy-world/" target="_blank">power-to-gas</a>, this methane would be intentionally manufactured from carbon dioxide and hydrogen using electricity. If all the inputs are climate-neutral – meaning, for example, that the electricity used to create the RNG is generated from resources without greenhouse gas emissions – then the combusted RNG would also be climate-neutral.</p><p>So far, RNG of either type isn't widely available. Much of the current conversation focuses on whether and how to make it available. For example, <a href="https://www.sempra.com/socalgas-takes-next-step-toward-offering-renewable-natural-gas" target="_blank">SoCalGas in California</a>, <a href="https://energynews.us/2019/01/30/midwest/minnesota-utility-wants-to-offer-customers-renewable-natural-gas-option/" target="_blank">CenterPoint Energy in Minnesota and Vermont Gas Systems in Vermont</a> either offer or have proposed offering RNG to consumers, in the same way that many utilities allow customers to opt in to renewable electricity.</p>
Renewable Isn’t Always Sustainable
<p>If RNG could be a renewable replacement for fossil natural gas, why not move ahead? Consumers have shown that they are <a href="https://www.nrel.gov/analysis/green-power.html" target="_blank">willing to buy renewable electricity</a>, so we might expect similar enthusiasm for RNG.</p><p>The key issue is that methane isn't just a fuel – it's also a <a href="https://www.eia.gov/environment/emissions/ghg_report/ghg_overview.php" target="_blank">potent greenhouse gas</a> that contributes to climate change. Any methane that is manufactured intentionally, whether from biogenic or other sources, will contribute to climate change if it enters the atmosphere.</p><p>And <a href="http://doi.org/10.1126/science.aar7204" target="_blank">releases</a> <a href="https://doi.org/10.1016/j.wasman.2019.07.029" target="_blank">will happen</a>, from newly built production systems and <a href="https://theconversation.com/why-methane-emissions-matter-to-climate-change-5-questions-answered-122684" target="_blank">existing, leaky transportation and user infrastructure</a>. For example, the moment you smell gas before the pilot light on a stove lights the ring? That's methane leakage, and it contributes to climate change.</p><p>To be clear, RNG is almost certainly better for the climate than fossil natural gas because byproducts of burning RNG won't contribute to climate change. But doing somewhat better than existing systems is no longer enough to respond to the <a href="https://doi.org/10.1038/nclimate2923" target="_blank">urgency</a> of climate change. The world's <a href="https://www.ipcc.ch/sr15/chapter/spm/" target="_blank">primary international body on climate change</a> suggests we need to decarbonize by 2030 to mitigate the worst effects of climate change.</p>Scant Climate Benefits
<p><a href="https://iopscience.iop.org/article/10.1088/1748-9326/ab9335/meta" target="_blank">My recent research</a> suggests that for a system large enough to displace a lot of fossil natural gas, RNG is probably not as good for the climate as <a href="https://investor.southerncompany.com/information-for-investors/latest-news/latest-news-releases/press-release-details/2020/Southern-Company-Gas-grows-leadership-team-to-focus-on-climate-action-innovation-and-renewable-natural-gas-strategy/default.aspx" target="_blank">is publicly claimed</a>. Although RNG has lower climate impact than its fossil counterpart, likely high demand and methane leakage mean that it probably will contribute to climate change. In contrast, renewable sources such as wind and solar energy do not <a href="https://www.eia.gov/environment/emissions/carbon/" target="_blank">emit climate pollution directly</a>.</p><p>What's more, creating a large RNG system would require building mostly new production infrastructure, since RNG comes from different sources than fossil natural gas. Such investments are both long-term commitments and opportunity costs. They would devote money, political will and infrastructure investments to RNG instead of alternatives that could achieve a zero greenhouse gas emission goal.</p><p>When climate change first <a href="https://www.nytimes.com/1988/06/24/us/global-warming-has-begun-expert-tells-senate.html" target="_blank">broke into the political conversation</a> in the late 1980s, investing in long-lived systems with low but non-zero greenhouse gas emissions was still compatible with aggressive climate goals. Now, zero greenhouse gas emissions is the target, and my research suggests that large deployments of RNG likely won't meet that goal.</p>From Your Site Articles
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The U.S. Environmental Protection Agency has approved two Lysol products as the first to effectively kill the novel coronavirus on surfaces, based on laboratory testing. Paul Hennessy / NurPhoto via Getty Images
The U.S. Environmental Protection Agency (EPA) recently issued a list of 431 products that are effective at killing viruses when they are on surfaces. Now, a good year for Lysol manufacturer Reckitt Benckiser just got better when the EPA said that two Lysol products are among the products that can kill the novel coronavirus that causes COVID-19.
<p>The two products are Lysol Disinfectant Spray and Lysol Disinfectant Max Cover Mist. In a <a href="https://www.epa.gov/newsreleases/epa-approves-first-surface-disinfectant-products-tested-sars-cov-2-virus" target="_blank">press release</a>, the agency said that the two products were both successful in laboratory testing at preventing the spread of the virus.</p><p>While there are 431 products on the EPA's list of disinfectants that are strong enough to stave off "harder-to-kill" viruses than the novel coronavirus, the two Lysol products are the first to be tested directly against the virus behind the global pandemic and be proven effective, as <a href="https://www.cnn.com/2020/07/07/health/epa-lysol-disinfectant-covid-19-trnd/index.html" target="_blank">CNN</a> reported.</p><p>While the EPA plans to test more products against the coronavirus specifically, it has so far only approved the two Lysol products as effective at removing the virus from surfaces.</p>
<p>That doesn't mean you just spray the disinfectant, wipe it away, and the virus is gone. The tests showed it was effective after two minutes, which means spraying it, leaving it, and then vigorously scrubbing are important steps to ensuring the sprays remove the coronavirus.</p><p>Reckitt Benckiser has already seen its profits rise more than 13 percent in the first half of the year as individuals and businesses have prioritized sanitizing surfaces, as <a href="https://www.forbes.com/sites/elanagross/2020/07/07/lysol-products-kill-coronavirus-on-surfaces-epa-testing-shows/#19a7571a242f" target="_blank">Forbes</a> reported. The company also made headlines in April when it had to disavow President <a href="http://www.ecowatch.com/trump-watch/" target="_self">Trump</a>'s claim that a disinfectant inside the body could knock out the virus in one minute.</p><p>"We must be clear that under no circumstance should our disinfectant products be administered into the human body (through injection, ingestion or any other route)," the company said in <a href="https://www.foxnews.com/politics/media-erupt-over-trump-comments-on-disinfectant-heres-what-he-said" target="_blank" title="https://www.foxnews.com/politics/media-erupt-over-trump-comments-on-disinfectant-heres-what-he-said">statement</a> at the time, as Forbes reported.</p>
<p>Now, the company has the distinct advantage of being allowed to advertise on its label that it can kill the novel coronavirus, which is technically named SARS-CoV-2. Before any product can legally advertise that it can kill a particular pathogen, the claim must be authorized by the EPA, according to <a href="https://www.nydailynews.com/coronavirus/ny-two-lysol-products-effectively-kill-coronavirus-on-surfaces-epa-20200707-cokk42xibzh7pmeqp35wcnyewm-story.html" target="_blank">The New York Daily News</a>.</p><p>"In the face of the pandemic, Lysol continues to work with a wide range of scientific and health experts to educate the public on the importance of hygiene," said Rahul Kadyan, executive vice president of Reckitt Benckiser in North America, as CNN reported.</p><p>"Hygiene is both the foundation of health and essential in preventing the spread of illness causing germs," said Kadyan <a href="https://www.prnewswire.com/news-releases/epa-approves-lysol-disinfectant-spray-for-use-against-covid-19-301088721.html" target="_blank">in a statement</a>. "The EPA's approval recognizes that using Lysol Disinfectant Spray can help to prevent the spread of COVID-19 on hard, non-porous surfaces."</p>
<p>According to the press release, Lysol is currently testing other products to measure their efficacy against the coronavirus.</p><p>Other common products on the EPA's disinfectant list include the Scrubbing Bubbles Multi-Purpose Disinfectant, Clorox Bleach Blanqueador and Arm & Hammer Essentials Disinfecting Wipes, though none of them have been tested against the novel coronavirus, as the <a href="https://www.today.com/health/two-lysol-sprays-first-disinfectants-proven-work-against-covid-19-t186106" target="_blank">Today Show</a> reported.</p><p>Along with wiping down surfaces, the CDC continues to ask the public to practice social distancing, wear protective face coverings in public, and wash hands thoroughly and often in order to effectively prevent the spread of COVID-19, as <a href="https://abcnews.go.com/GMA/Living/epa-approves-1st-disinfectant-sprays-kill-covid-19/story?id=71647880" target="_blank">ABC News</a> reported.</p>
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U.S. Rep. Alexandria Ocasio-Cortez unveils the Green New Deal resolution in front of the U.S. Capitol on February 7, 2019 in Washington, DC. Alex Wong / Getty Images
For all its posturing on climate change, the Democratic Party has long been weak on the actual policies we need to save us from extinction. President Barack Obama promised his presidency would mark "the moment when the rise of the oceans began to slow," and then embraced natural gas, a major driver of global temperature rise, as a "bridge fuel." Climate legislation passed in the House in 2009 would have allowed industries to buy credits to pollute, a practice known to concentrate toxic air in black and brown neighborhoods while doing little to cut emissions.
<p>Even this year, with interest in the issue at an all-time high, the candidates the <a href="https://ballotpedia.org/Democratic_Senatorial_Campaign_Committee" title="Democratic Senatorial Campaign Committee" target="_blank">Democratic Senatorial Campaign Committee</a> endorsed — like Amy McGrath, who eked out a victory in Kentucky's Senate primary, and former-Governor John Hickenlooper, who handily won Colorado's — have evinced skepticism about the Green New Deal, a resolution pending in Congress to put trillions of dollars into a transition to renewable energy plus job-training for a new clean economy.</p><p>On June 4, however, when the Democratic National Committee's Environment and Climate Crisis Council released a rigorous set of proposals for the party's 2020 platform, it offered climate voters some hope. The 14-page document's solutions for the warming planet included investment in communities that suffer every day with the consequences of industrial waste, shoring up public health services and making sure everyone has enough to eat. It also advises changing the structure of the society that allows police to kill unarmed black people with relative impunity.</p><p>"There's just no way to address the climate crisis without taking on systemic racism," says Michelle Deatrick, chair of the council. "They're intertwined and integrally related."</p><p>But proposals are not a platform; they don't represent any official statement of purpose from the DNC on climate or anything else. The climate council, founded in August 2019 after party members failed to persuade Chairman Tom Perez to hold a climate debate, is but one of three groups involved in crafting the party's final climate policies. Another, the eight-member Biden-Sanders Climate Task Force, will offer recommendations from the likes of New York Rep. Alexandria Ocasio-Cortez and environmental justice leader Catherine Coleman Flowers. Then it's yet another committee that will draw up the actual climate platform with former Vice President Joe Biden, the party's presumptive nominee.</p>
<p>On its face, that process looks reasonable: A task force and a council inclined to progressive ideals will push the ultimate deciders to take bigger steps toward a zero-carbon future. The problem, Deatrick says, is that once the platform has been agreed upon by that final, 15-member committee, it rarely changes when it goes before the full committee for approval.</p><p>"It's mostly a formal vote," she says. The state and local officials in the DNC, despite the crucial knowledge they bring from their jurisdictions, "historically have had no impact on the final product." But this year, with its great convergence of catastrophes that have defined the spring and summer of 2020, <em>has</em> to be different. "We need to have an inclusive and transparent process around the creation of the platform," Deatrick says. "This is a great opportunity for Democrats to show that we are the party of listening and deep considerations of ideas."</p><p>Among those ideas is that none of the problems we're facing can be disentangled from the others. "The nature of environmental problems is bound up in the history of race in America," says Adrien Salazar, senior campaign strategist for climate equity with the social-justice think tank Dēmos. "The only way that [polluting] industries have been viable at all is because there are communities where they can pollute, places that have ended up being the sacrifice zones for the rest of America."</p><p>Racial inequality, he says, "undergirds the very fabric of American society."</p>
<p>"You can't have climate change without sacrifice zones,"<a href="https://www.sierraclub.org/sierra/racism-killing-planet" title=" wrote" target="_blank"> wrote</a> Hop Hopkins, director of strategic partnerships for the Sierra Club, in a recent essay. "And you can't have sacrifice zones without disposable people, and you can't have disposable people without racism."</p><p>Robert Bullard, the author and researcher often called "the father of the environmental justice movement," has found that toxic hot spots across the U.S., from Louisiana's "Cancer Alley" to the refinery rows of Texas, <a href="https://drrobertbullard.com/african-americans-on-the-frontline-fighting-for-environmental-justice/" title="align closely" target="_blank">align closely</a> with Jim Crow housing segregation and other discriminatory zoning practices. "America is segregated," he says, "and so is pollution."</p><p>The injustice bleeds into public health and disease transmission: The COVID-19 virus<a href="https://www.medrxiv.org/content/10.1101/2020.04.11.20061713v1" title=" travels" target="_blank"> travels</a>, scientists hypothesize, on the sooty particles that blight communities on the front lines of industrial pollution. Those same places emit the greenhouse gases warming the atmosphere. In other words, it's not just pre-existing conditions causing the disease to hit harder in black communities. It's literally the air people breathe.</p><p>There are people tasked with air-quality regulation who argue that the common air contaminants that make people sick – the ground-level ozone that irritates lung tissue, the particulate matter that triggers cancer – belong to a different category than the greenhouse gases that trap the earth's heat. Mustafa Santiago Ali, vice president of environmental justice, climate and community revitalization for the National Wildlife Federation, remembers hearing as much during the 24 years he spent at the U.S. Environmental Protection Agency. "I've had these conversations with some of the best scientists in the world," he says. "And what I know is that it is impossible, <em>impossible, </em>to hit the numbers that we need to hit to win on climate change if you're not focused on environmental justice."</p>
<p>Fossil-fuel infrastructure, for instance, blights "lower-wealth communities," Santiago Ali says. "So if you focus on that, you're going to begin to minimize the impacts of oil and gas." Pipelines cut through indigenous land in the Midwest and end up on Louisiana's Gulf Coast. "If you stop those pipelines, you stop the climate-killing export of oil."</p><p>Cars and trucks drive global warming, too, and their proliferation is made possible by "policies of running highways through certain communities, moving wealth into certain communities and dropping off pollution in lower-wealth communities along the way." Writer Peter Simek has <a href="https://www.dmagazine.com/frontburner/2016/03/the-racist-legacy-of-americas-innercity-highways/" title="noted" target="_blank">noted</a> that you can find the locations of Dallas' Freedmen's Towns — communities established by emancipated slaves during and after the Civil War — by following the highways engineers built on top of them. "Some of the most powerful planners in America were forthright about their intention to use their power as transportation engineers to rewire a society built on racial and economic segregation," he wrote.</p><p>If you stop dehumanizing people in order to pollute, you stop degrading the environment, Santiago Ali says. If you don't, we literally won't survive. "There's no way of pulling climate out and saying, 'We're going to win on this but not focus on any of these other issues," he says. "That's just bad arithmetic."</p>
<p>Whether the platform committee does better math depends on how well it responds to outside pressure: The group is diverse, but not necessarily progressive. (Journalist Emily Atkin in her newsletter<a href="https://heated.world/p/dnc-snubs-progressive-climate-activists" title=" Heated" target="_blank"> Heated</a> has broken the group down in a useful<a href="https://docs.google.com/spreadsheets/d/1PloB-PNkeg8j2s0UFFnFFPfcoxTMalI8S6pm8PhrVJ0/edit?usp=sharing" title=" spreadsheet" target="_blank"> spreadsheet</a>.) Fear surrounds this election — fear that pushing too hard on climate and racial injustice both will alienate white voters of the Rust Belt; fear that people will equate an expensive clean energy transition with the loss of jobs in oil and gas. Cecil Roberts, president of the United Mineworkers Union, told<a href="https://www.reuters.com/article/us-usa-election-climate-exclusive/exclusive-u-s-democratic-party-irked-by-councils-insurgent-climate-plan-sources-idUSKBN23M1DO" title=" Reuters" target="_blank"> Reuters</a> that the circulation of the climate council's policy recommendations "has already cost Democrats potential votes in places like Pennsylvania, Ohio and Michigan."<span></span></p><p>Deatrick, who in addition to her environmental work is a longtime union supporter from Michigan, isn't worried. "We have to walk the talk," she says. "We have to make sure that we commit to policies that support those workers, replace pensions, provide health care." What she's learned on three months of listening tours around the country is that people are less afraid of economic transitions than they are of the chaos a changing climate will bring.</p><p>"We have a real opportunity to reinvigorate the part of the electorate – which is the vast majority of Democrats and Independents as well – who rate the climate crisis among their top priorities," Deatrick says, along with health care and racial inequality. She wants to make sure that when the draft of the climate platform is drawn up, those people are heard. The DNC "has not laid out what that listening process will be," she says. "And we don't have much time left."</p>
<p class=""><em>This story originally appeared in</em> <em><a href="https://capitalandmain.com/" target="_blank">Capital & Main</a></em> <em>and is republished here as part of Covering Climate Now, a global journalism collaboration strengthening coverage of the climate story.</em></p>From Your Site Articles
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About 30,000 claims contending that Roundup caused non-Hodgkin's lymphoma are currently unsettled. Mike Mozart / CC BY 2.0
Bayer's $10 billion settlement to put an end to roughly 125,000 lawsuits against its popular weed killer Roundup, which contains glyphosate, hit a snag this week when a federal judge in San Francisco expressed skepticism over what rights future plaintiffs would have, as the San Francisco Chronicle reported.
<p>The $10 billion settlement does not actually need judicial review and is set to move forward. The issue is that $1.25 billion from the settlement does need a court order to be approved. That part deals with future lawsuits by <a href="http://www.ecowatch.com/tag/cancer" target="_self">cancer</a> patients who have not yet gone to court and by others who have not yet been diagnosed. The U.S. District Judge Vince Chhabria said in an order Monday that he had questions about the legality and fairness of the agreement and was "tentatively inclined" to reject it, as the <a href="https://www.sfchronicle.com/business/article/SF-judge-questions-Bayer-s-1-25-billion-plan-15391982.php" target="_blank">San Francisco Chronicle</a> reported.</p><p>In a court filing on Monday, the judge described a plan to create a class action for future litigants as problematic, and he set a July 24 hearing date to address the matter, as <a href="https://www.bloomberg.com/news/articles/2020-07-07/bayer-s-roundup-cancer-settlement-plan-hits-snag-as-judge-balks" target="_blank">Bloomberg</a> reported.</p>
<p>"We appreciate the judge's order raising his preliminary concerns with the proposed class settlement, which we take seriously and will address" at the hearing, Chris Loder, a U.S.-based spokesman for the Germany-based chemical and pharmaceutical giant Bayer, said in an interview.</p><p>Chhabria said he "is skeptical of the propriety and fairness of the proposed settlement." He raised concerns about the creation of a scientific panel to decide whether the key ingredient, glyphosate, causes cancer and whether the agreement unfairly limits potential plaintiffs from suing, according to <a href="https://www.nytimes.com/2020/07/07/business/roundup-lawsuit-settlement.html" target="_blank">The New York Times</a>.</p><p>Right now about 30,000 claims contending Roundup caused non-Hodgkin's lymphoma are left unsettled. Some lawyers in the U.S. have vowed to file another wave of new suits that could add tens of thousands to the logjam of existing cases, according to Bloomberg.</p>
<p>"Thankfully, Judge Chhabria has seen the ruthless plan as an outrageous attempt to deprive every future victim of Monsanto's killer Roundup of their right to fair and full compensation and to a jury trial," Tom Kline and Jason Itkin, plaintiffs' attorneys for users of the weedkiller who haven't settled their suits, said in an emailed statement to Bloomberg on Tuesday.</p><p>Bayer has lost a series of high-profile multi-million dollar cases for Roundup's role in causing non-Hodgkin's lymphoma in people who used the Monsanto brand herbicide. That series of losses has seen investors flee from Bayer since it acquired Monsanto for $63 billion in 2018.</p><p>To stem the tide of suits, Bayer insisted that the protection against future suits is a linchpin of the current settlement. Without it, the bulk of the $10 billion deal has the potential to fall apart, according to The New York Times.</p>
<p>In addition to the $8.8 billion to $9.6 billion to cover about 95,000 cases, $1.25 billion was set aside to finance the scientific panel and assist impoverished Roundup users with non-Hodgkin's lymphoma. As The New York Times described, that panel would then decide whether glyphosate caused cancer and, if so, what exposure level was dangerous. Both Bayer and claimants would be bound to accept the findings in future litigation.</p><p>New York-based lawyer Hunter Shkolnik opposed the novel class-action idea from the onset. He described it as "nothing more than a legally infirm, backroom deal to protect Monsanto rather than compensating Roundup cancer victims," in an emailed statement to Bloomberg.</p>
<p>Judge Chhabria asked on Monday whether it was lawful to remove judges and juries from the equation and to shift the question of whether Roundup caused cancer to a panel of scientists.</p><p>According to The New York Times, he also noted the three previous multimillion-dollar verdicts and asked, "Why would a potential class member want to replace a jury trial and the right to seek punitive damages with the process contemplated by the settlement agreement?"</p><p>Furthermore, Chhabria also worried that the <a href="http://www.ecowatch.com/science/">science</a> on glyphosate's cancer-causing properties is still evolving. That led him to question whether it would pass legal muster to have claimants bound by one study that didn't find toxicity when a future, more rigorous study may find the opposite, as Bloomberg reported.</p>
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Hundreds of sudden elephant deaths in Botswana aren't just a loss for the ecosystem and global conservation efforts. Mario Micklisch / Flickr / CC by 2.0
By Charli Shield
When an elephant dies in the wild, it's not uncommon to later find its bones scattered throughout the surrounding landscape.
<p>That's one way you can tell other elephants have passed through the area, says George Wittemyer, a wildlife conservation biologist at Colorado State University who's been researching African elephants in Kenya's Samburu National Reserve for more than 20 years.</p><p>Another sign, long-term elephant conservationist Joyce Poole adds, is the presence of tracks worn through the grass leading to its body. "The vegetation will be gone and the carcass will be surrounded by elephant dung because so many elephants will have visited and stayed," Poole says.</p><p>While scientists are yet to pinpoint what exactly struck down a reported 356 elephants in Botswana's Okavango Delta area, what we do know is that these deaths are not only significant for ecologists and conservationists — but elephants themselves. </p>
Elephant Burial Grounds
<p>Highly social creatures that form deep familial bonds, elephants have long been observed gathering at the site where a peer or family member has died — often spending hours, even days, quietly investigating the bodies or the bones of other dead elephants.</p><p>Although the popular idea that dying elephants are instinctively drawn to special communal graves — so-called "elephant graveyards" — is a myth, their tendency to go out of their way to visit the bones and tusks of the deceased isn't unlike human rituals at graveyards, says animal psychologist Karen McComb.</p><p>"They spend a lot of time touching and smelling skulls and ivory, placing the soles of their feet gently on top of them, and also lifting them up with their trunks," McComb, who's been studying African elephants for 25 years in Kenya's Amboseli National Park, told DW.</p><p>The most striking part of watching an elephant experience loss, Poole recalls, is the quietude. She still remembers one of the first elephant deaths she witnessed; a mother who birthed a stillborn calf. That elephant stayed with its baby for two days, trying to lift it and defending it from vultures and hyenas.</p><p>"I was so struck by the expression on her face and her body. She looked so dejected. It was really like, 'Oh God, these animals grieve…'. It was just so different," Poole told DW. </p>Witnessing Emotions in Animals
<p>Not all scientists are comfortable concluding that elephants grieve. Among the more than 30 reports of elephant reactions to death that Wittemyer co-reviewed in <a href="https://link.springer.com/article/10.1007/s10329-019-00766-5" target="_blank">a study published in November 2019</a> were accounts of "enormous variation and nuance" he says. "It can be incredibly involved and intricate for extended periods or can be relatively cursory checks."</p><p>In Wittemyer's own experience, it can be difficult not to attribute some kind of emotional experience to the more involved interactions between elephants and their dead.</p><p>He shares the story of an "extraordinary event" involving the death of a 55 year-old matriarch in Kenya in a protected area that happened to be near his place of work. She was visited by multiple unrelated families while she was dying, including another matriarch that exerted such enormous effort attempting to lift her to her feet that she broke her tusk, which Wittemyer says, is "like breaking a tooth." </p><p><span></span>"It was a remarkable example of this heightened emotional state, it was very clearly a very stressful interaction," he says.</p>A Different Sensory World
<p>One factor that limits our ability to fully grasp the way elephants process and respond to loss is our markedly different sensory experiences of the world.</p><p>An elephant's world is fundamentally olfactory — based on smell. Ours is visual. Previous <a href="https://pubmed.ncbi.nlm.nih.gov/25053675/" target="_blank">research</a> has shown elephants possess the most scent receptors of any mammal, and can <a href="https://pubmed.ncbi.nlm.nih.gov/17949977/" target="_blank">use smell</a> to discern the difference between different human tribes from the same local area.</p><p>That could explain why elephants exhibit such interest in sniffing the bones and tusks of others, as a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1617198/" target="_blank">2005 study</a> from McCombs highlighted. When presented with the skulls and ivory of long-dead elephants and those from other large herbivores, including rhino and buffalo, McCombs and her team found elephants approached and were specifically attracted to the remains of their own species. </p><p>Without access to the smells an elephant picks up on, Wittemyer says "an enormous amount of stuff" could be missed by humans when studying these behaviors.</p><p>While scientists cannot say what the elephants are thinking, it is clear that death — whether of a relative, a close companion, or just another member of their species — has some kind of meaning for elephants. </p><p>And why wouldn't it? Asks Poole, who points to the fact that elephants' survival depends on their social and familial relationships.</p><p>"Through the course of evolution they have evolved these complex rituals to hold families together. Those have to be driven by some sort of positive emotions, otherwise why would they bother?"</p><p>"They recognize that death, for somebody, is a big loss."</p>
<p class=""><em>Reposted with permission from </em><em><a href="https://www.dw.com/en/elephant-deaths-botswana-what-it-could-mean/a-54079677?maca=en-VAM_volltext_ecowatch-28485-html-copypaste" target="_blank">Deutsche Welle</a>.</em><a href="https://www.ecowatch.com/r/entryeditor/2646364470#/" target="_self"></a></p>From Your Site Articles
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