Greenhouse gas emissions from the way humans consume food could add nearly 1 degree of warming to Earth’s climate by 2100, according to a study out Monday in Nature Climate Change
FILE- A line of Holstein dairy cows feed through a fence at a dairy farm on March 11, 2009, outside Jerome, Idaho. Greenhouse gas emissions from the way humans consume food could add nearly one degree of warming to the Earth’s climate by 2100, according to a new study Monday, March 6, 2023. Researchers found that the majority of greenhouse gas emissions come from three major food groups — meat from animals like cows, sheep and goats, dairy and rice.
All emit large amounts of methane, a potent greenhouse gas with more than 80 times the warming power of carbon dioxide, in the way they are currently farmed. The researchers calculated that methane will account for 75% of food's share of warming by 2030, with carbon dioxide and nitrous oxide accounting for most of the rest.
And then they used a climate model frequently used by the United Nations’ panel on climate change to model the effects of those emissions on surface air temperature change.
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