America’s Dairy Cows Could Soon Have a Less Toxic Effect on the Climate

Farmers will be able to add Bovaer—a methane-reducing ingredient—to dairy cows’ feed, potentially reducing emissions by 30%.
Jun 26, 2024 3:30 PM ET
colored image of a cow
Image courtesy of Fast Company

Originally published by Fast Company 

In May, the Food and Drug Administration said Bovaer met safety and efficacy requirements for use in dairy cows. The feed additive, distributed by Indiana-based Elanco Animal Health, has been shown to cut a dairy cow’s methane emissions by an average of 30%. It works by suppressing the gut enzyme that produces the gas, and has no adverse health effects for the cows—or for the humans who consume their milk, according to numerous studies. 

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