Animal agriculture has quietly become a huge contributor to climate change.
According to the United States Department of Agriculture, global agriculture — dominated by livestock production and grains grown as animal feed — accounts for roughly 30 percent of the world's greenhouse gas emissions. Another study, conducted by the Food and Agriculture Organization of the United Nations, found that 18 percent of global greenhouse gas emissions are “directly attributable” to livestock production. That's more than the emissions generated by the entire transportation sector. The problem is cows, not cars.
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