Methane emissions are a big deal!
Rising methane levels may be thwarting climate change efforts. A 2017 study attributes about half of the increase to cows and other ruminant livestock which produce methane as they digest food.
These animals host microbes in their stomachs, gut filling hitchhikers that help them break down and absorb the nutrients from tough-to-digest grasses. Those microbes produce methane as their waste, which wafts out of both ends of cows. The manure that cattle and other grazers produce is also a site for microbes to do their business, producing even more methane. Now consider that there are 1.4 billion cattle in the world. You can see why so much of the methane being produced is from livestock.
“Methane emissions are a big deal. About a sixth of the warming that we’ve had since the start of the Industrial Revolution has been caused by methane,” said Stanford University professor Rob Jackson, who chairs the international emission tracking organization known as the Global Carbon Project.
Methane is a far more powerful greenhouse gas than carbon dioxide. According to the U.S. Environmental Protection Agency, a molecule of methane will cause 28-36 times more warming than a molecule of carbon dioxide over a 100-year period. Recent data shows that methane concentrations in the atmosphere have risen from about 1,775 parts per billion in 2006 to 1,850 parts per billion in 2017.
So, one way to reduce that is to just stop eating beef, right? That’s what researchers near and far believe, including Paul West at the University of Minnesota.
“As an individual, one of the biggest effects that we can have [to reduce greenhouse gas emissions from agriculture] is changing what we’re eating to eating a smaller amount of beef,” said West.
Why stop there? we ask. To have the greatest impact, we all need to cut out animal products from our diets as quickly as possible. We can’t afford to only take small steps anymore.
To learn more, see our article: Cows Gas the Planet.
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