Climate and Weather

Scientists Are Breeding Cows That Burp Less Methane. Here’s How That Could Save The Planet

The ‘Cool Cows’ project uses cutting-edge genetics and IVF technology to breed dairy cows that could help fight climate change.

By Jenn Jordan and Caitlin Kaiser • November 12, 2025

Dairy Farmers Have A Way To Slow Climate Change

The dairy industry might not seem like a major climate villain, but it’s responsible for about 4% of human-caused greenhouse gas emissions worldwide, most of that from cow burps.

That’s right: when cows digest grass and feed, tiny microbes in their stomachs release methane, a gas that traps 80 times more heat than carbon dioxide. The good news? A new project out of the U.K. is proving that innovation, and a little bovine biology, migh

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