Excess nitrogen favors plants that respond poorly to rising CO2
Saturday, July 3, 2010 - 02:21
in Earth & Climate
As atmospheric carbon dioxide levels rise, so does the pressure on the plant kingdom. The hope among policymakers, scientists and concerned citizens is that plants will absorb some of the extra CO2 and mitigate the impacts of climate change. For a few decades now, researchers have hypothesized about one major roadblock: nitrogen.