Public discussion of complicated climate change is largely reduced to carbon: carbon emissions, carbon footprints, carbon trading. But other chemicals have large roles in the planet's health, and one that a growing number of other researchers are also concentrating on, is nitrogen.
"The nitrogen dilemma," Vitousek added, "is not just thinking that carbon is all that matters. But also thinking that global warming is the only environmental issue. The weakening of biodiversity, the pollution of rivers, these are local issues that need
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