Antarctic Penguin Poop Emits Laughing Gas
A colony of king penguins in Antarctica emit so much nitrous oxide, or laughing gas, in their poop that researchers went a little "cuckoo," while studying them, according to Agence France Presse, which reported on a new study published in the journal Science of the Total Environment.
The study looked at the effects of a king penguin colony's activity on soil greenhouse gas fluxes in South Georgia, an island just north of Antarctica. One finding in particular was notably unique—penguin feces, or guano, produce extremely high levels of nitrous oxide, as CNN reported.
The scientists from the University of Copenhagen in Denmark were investigating the effect of glacier retreat and penguin activity on greenhouse gas emissions. They decided to take samples from South Georgia Island since it his home to over 150,000 breeding pairs of king penguins, as Newsweek reported.
"After nosing about in guano for several hours, one goes completely cuckoo," lead researcher Bo Elberling said in a statement, as Newsweek reported. "One begins to feel ill and get a headache. The small nitrous oxide cylinders that you see lying in and floating around Copenhagen are no match for this heavy dose, which results from a combination of nitrous oxide with hydrogen sulphide and other gases."
Penguin poop is known to create huge amounts of nitrous oxide because the penguins' diet is rich in fish and krill that have absorbed large amounts of nitrogen via phytoplankton. The nitrogen is then released from the guano. When it hits the soil and interacts with the air, it is converted to nitrous oxide.
Nitrous oxide is a potent greenhouse gas, with a warming effect that is 300 times what carbon dioxide produces, according to Newsweek. It's also used as a sedative for dental procedures, as a recreational drug and in agriculture.
"Penguin guano produces significantly high levels of nitrous oxide around their colonies. The maximum emissions are about 100 times higher than in a recently fertilized Danish field," Elberling said in a University of Copenhagen press release, as CNET reported.
On their own, the penguin guano is not nearly strong enough to affect the earth's atmosphere, but it is clear that the penguins affect their local environment, which is important as colonies grow and move to adapt to a changing climate, as CNN reported.
"A future expansion of penguins into newly available ice-free polar coastal areas may therefore markedly increase the local (greenhouse gas) budget," the study says.
"Penguins have been considered to be an ideal 'bio-indicator' of ecosystem and environmental changes, as changes in populations and colonies reflect direct and indirect ecological responses to climatic changes," the authors wrote in the study. "Changes in penguin colonies, penguin activity and the associated addition of guano are known to significantly influence terrestrial soil and ecosystem processes and thereby can turn soils into [greenhouse gas] emission hotspots."
Eberling added that future research may add to an understanding of how the droppings affect the earth and its atmosphere, which could help mitigate greenhouse gas emissions, according to CNN.
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This week marks the official start of fall, but longer nights and colder days can make it harder to spend time outdoors. Luckily, there are several inspiring environmental films that can be streamed at home.
1. Kiss the Ground<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="ccc5f0c92a5603e68aec39e56b0db02a"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/K3-V1j-zMZw?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p><strong>Streaming On: Netflix</strong></p><p><strong>Premiere Date: Sept. 22</strong></p><p>Between <a href="https://www.ecowatch.com/wildfires-california-washington-oregon-photos-2647585008.html" target="_self">wildfires devastating the U.S. West Coast</a> and <a href="https://www.ecowatch.com/tropical-storm-beta-landfall-2647760268.html" target="_self">storms battering the Gulf</a>, the impacts of the <a href="https://www.ecowatch.com/climate-change/" target="_self">climate crisis</a> can feel overwhelming right now. <em><a href="https://kissthegroundmovie.com/" rel="noopener noreferrer" target="_blank">Kiss the Ground</a> </em>offers an alternative to all of the bad news by focusing on solutions.</p><p>The film, directed by Josh and Rebecca Tickell and narrated by Woody Harrelson, explains how we can heal the Earth through "regenerative agriculture," farming practices that draw carbon dioxide from the atmosphere and into soil as a way to restore soil health, which in turn boosts ecosystems and food supplies.</p><p>"<em>Kiss the Ground </em>shows how feasible it is to make these changes at a grassroots level immediately and make a truly substantive impact with low cost and easy to implement solutions," Executive Producer RJ Jain said in an email. "This is why I got involved."</p>
2. Public Trust: The Fight for America's Public Lands<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="5338f7a2931e356910026e5fd76fac56"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/jsKMTAaj_wQ?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p><strong>Streaming On: YouTube</strong></p><p><strong>Premiere Date: Sept. 25, 2 p.m. EDT </strong></p><p>This <a href="https://www.patagonia.com/films/public-trust/" target="_blank">award-winning documentary</a> tells the stories of Indigenous activists, journalists, whistleblowers and historians working to protect America's <a href="https://www.ecowatch.com/tag/public-lands" target="_self">public lands</a>. The film focuses on three political struggles: the shrinking of <a href="https://www.ecowatch.com/tag/bears-ears" target="_self">Bears Ears</a> National Monument in Utah, the mining of Boundary Waters Wilderness in Minnesota and the opening of the <a href="https://www.ecowatch.com/tag/Arctic-National-Wildlife-Refuge" target="_self">Arctic National Wildlife Refuge</a> to fossil fuel exploration.</p><p><em>Public Trust</em> was directed by David Garrett Byars and produced by Jeremy Rubingh. Patagonia Films, Patagonia founder Yvon Chouinard and actor Robert Redford are executive producers. It will be <a href="https://www.youtube.com/watch?v=OGjnIG7puzY" rel="noopener noreferrer" target="_blank">released</a> on YouTube in time for <a href="https://www.ecowatch.com/national-public-lands-day-2640656776.html" target="_self">National Public Lands Day</a>.</p><p>"Our country is fortunate to have millions of acres of public lands, including National Parks, Monuments, Wildlife Refuges and Wilderness set aside for future generations," Redford said. "Sadly, these lands that belong to you and me are under unprecedented threats from the greed of big corporations, eager to weaken restrictions in the pursuit of profits. Many of our current politicians are also to blame. <em>Public Trust</em> tells the story of citizens who are fighting back. It's a much-needed wake-up call for all of us who want to preserve our unique and wild cultural heritage."</p>
3. David Attenborough: A Life on Our Planet<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="156438a30836a765d7a92982545fc334"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/B_OFZvAd05Y?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p><strong>Streaming On: Netflix</strong></p><p><strong>Premiere Date: Oct. 4</strong></p><p>Beloved nature broadcaster <a href="https://www.ecowatch.com/tag/David-Attenborough" target="_self">David Attenborough</a> has spent his career introducing viewers to the wonders of our planet. In recent years, his footage of albatrosses swallowing <a href="https://www.ecowatch.com/tag/plastics" target="_self">plastic</a> in <em>Blue Planet II</em> has been credited with <a href="https://www.ecowatch.com/2018-fighting-plastic-waste-2624606566.html" target="_self">helping to ramp up</a> the global fight against plastic pollution. Now, in this <a href="https://www.wwf.org.uk/" rel="noopener noreferrer" target="_blank">World Wildlife Fund</a> (WWF)-produced <a href="https://www.attenborough.film/" rel="noopener noreferrer" target="_blank">documentary</a>, he reflects on the defining moments of his career and the devastating changes he has witnessed.</p><p><em>David Attenborough: A Life on Our Planet,</em> which was also produced by Silverback Films and directed by Alastair Fothergill, Jonnie Hughes and Keith Scholey, features an intimate conversation between Attenborough and Sir Michael Palin as the broadcaster reflects on his life and a career that took him to every continent on Earth. In addition to streaming on Netflix, the movie will be available in select theaters starting Sept. 28.</p><p>"For decades, David has brought the natural world to the homes of audiences worldwide, but there has never been a more significant moment for him to share his own story and reflections," WWF executive producer Colin Butfield said in a <a href="https://www.wwf.org.uk/updates/david-attenborough-life-our-planet" target="_blank">statement</a>. "This film coincides with a monumental year for environmental action as world leaders make critical decisions on nature and climate. It sends a powerful message from the most inspiring and celebrated naturalist of our time."</p>
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EcoWatch Daily Newsletter
The world's largest online retailer is making it slightly easier for customer to make eco-conscious choices.
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By Maria Trimarchi and Sarah Gleim
If all the glaciers and ice caps on the planet melted, global sea level would rise by about 230 feet. That amount of water would flood nearly every coastal city around the world [source: U.S. Geological Survey]. Rising temperatures, melting arctic ice, drought, desertification and other catastrophic effects of climate change are not examples of future troubles — they are reality today. Climate change isn't just about the environment; its effects touch every part of our lives, from the stability of our governments and economies to our health and where we live.
<p>Why environmental refugees flee their homes is a complicated mixture of environmental degradation and desperate socioeconomic conditions. People leave their homes when their livelihoods and safety are jeopardized. What effects of climate change put them in jeopardy? Climate change triggers, among other problems, desertification and drought, <a href="https://science.howstuffworks.com/environmental/green-science/deforestation.htm" target="_blank">deforestation</a>, land degradation, rising sea levels, <a href="https://science.howstuffworks.com/nature/natural-disasters/flood.htm" target="_blank">floods</a>, more frequent and more extreme storms, <a href="https://science.howstuffworks.com/nature/natural-disasters/earthquake.htm" target="_blank">earthquakes</a>, <a href="https://science.howstuffworks.com/nature/natural-disasters/volcano.htm" target="_blank">volcanoes</a>, food insecurity and famine.</p><p>The September <a href="http://visionofhumanity.org/app/uploads/2020/09/ETR_2020_web-1.pdf" target="_blank">2020 Ecological Threat Register Report</a>, by the Institute for Economics & Peace, predicts the hardest hit populations will be:</p><ul><li>Sub-Saharan Africa, South Asia, the Middle East and North Africa</li><li>Afghanistan, Syria, Iraq, Chad, India and Pakistan (which are among the world's least peaceful countries)</li><li>Pakistan, Ethiopia and Iran are most at risk for mass displacements</li><li>Haiti faces the highest risk of all countries in Central America and the Caribbean</li><li>India and China will be among countries experiencing high or extreme water stress</li></ul>
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In his latest documentary, My Octopus Teacher, free diver and filmmaker Craig Foster tells a unique story about his friendship and bond with an octopus in a kelp forest in Cape Town, South Africa. It's been labeled "the love story that we need right now" by The Cut.
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