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 ...

Next to CO2, methane is the greenhouse gas that contributes most to the man-made greenhouse effect. Of the methane sources caused by human activity, rice fields and cattle are among the most important ...

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University of Minnesota researchers are looking for ways to reduce the production of the greenhouse gas methane created when cows digest their food.

Experts at the University of Minnesota are experimenting with diet changes — including seaweed from Hawaii — to reduce the amount of methane released by cows University of Minnesota researchers are ...