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  • 2021-04-27 (xsd:date)
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  • Are Cow Farts Causing Global Warming? (en)
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  • According to the Environmental Protection Agency (EPA), the leading sources of greenhouse gas emissions in the financial sector are transportation, electricity production, industry, residential housing, and agriculture. When agriculture's role in the climate crisis is discussed online, the issue is often simplified down to a humorous two-word theme: cow farts. The claim that cow farts are a leading cause of greenhouse gas emissions can be found just about everywhere and has become the butt (pun intended) of several global warming jokes. One popular meme on social media states: Cow farts come from the dairy air. On a recent Fox News segment (above), a fiery explosion from a cow's rump is shown blowing up the world. There are two important things to note here. First, while the agriculture industry accounted for 10% of greenhouse gas emissions from the financial sector in 2019, according to the EPA, not all of those emissions came from cows. Soil, land, feed, and manure management also contribute to the agriculture industry's ecological footprint. The second thing to note is that the problem with cows comes down to their burps, not their farts. Cows produce a lot of methane (CH4) during their digestive process, and the vast majority of this methane escapes by eructation (belching). Christopher Field of the Stanford Woods Institute for the Environment told The Associated Press: NASA also took a look at whether it was cow's belching or flatulence that was a bigger source of methane production. NASA wrote: A number of potential solutions have been proposed or enacted in order to reduce the amount of methane produced by cows. For example, a 2015 study found that adding seaweed to a cow's diet could help reduce methane production. Another solution proposed by scientists in Argentina is to equip cows with belch-collecting backpacks. In April 2021, the idea of reducing beef consumption to lessen greenhouse gas emissions was a hot topic on social media as the food website Epicurious announced that it would stop publishing recipes that included beef in a pro-planet effort aimed at sustainability. There was also a false rumor that U.S. President Joe Biden would be mandating a 90% reduction in beef consumption. Marine biologist Dr. Ayana Elizabeth Johnson, podcast host Alex Blumberg, and reporter Anna Ladd took a deeper dive into the farming industry's impact on climate change (and the persistent rumor that cow farts are to blame) in a recent episode of How To Save the Planet. https://gimletmedia.com/shows/howtosaveaplanet/94hrd52?utm_source=gimletWebsite&utm_medium=copyShare&utm_campaign=gimletWebsite (en)
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