Methane emissions from wetlands are rising faster than those from industrial sources, prompting concerns about a climate feedback loop.

Methane isn’t just an environmental buzzword—it is energy lost. Every puff of gas from a cow’s rumen represents feed energy that could have gone toward growth, milk or a calf. That simple truth is ...

As the world races to curb climate change, scientists are taking aim at cows, a surprisingly potent source of greenhouse gases. Science correspondent Miles O’Brien traveled from California to Mexico ...

Cattle produce more methane than any other livestock. Methane, a greenhouse gas, traps heat, which warms the Earth. It is far more powerful than its more common counterpart, carbon dioxide. When cows ...

An electron microscope image of single-celled methanogens, members of the archaea branch of the tree of life. They are ubiquitous in oxygen-free environments, turning simple foods into methane, a ...