A new catalytic shortcut turns nitrogen into ammonia with record efficiency

Tiny biochar particles could help soybeans absorb more nitrogen and produce higher yields

This week in PNAS Journal Club: Three fossils of Ice Age American “cheetahs” found in the Yukon Territory offer the first full genome for the species. These extinct big cats were closely related to pumas, and ate a diet high in nitrogen, suggesting their main prey was fish, probably salmon.

Manganese-enhanced biochar helps soil retain nitrogen while reducing greenhouse gas emissions