Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most ...

A photo of seven American bison grazing in Gardiner, Montana, in front of a stone arch Bison graze near Roosevelt Arch, near the north entrance of Yellowstone National Park, in Gardiner, Montana.

Gilles Billen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

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