15 August 2015

Greenhouse gas source underestimated from the US Corn Belt, University of Minnesota-led study shows

University of Minnesota

Estimates of how much nitrous oxide, a significant greenhouse gas and stratospheric ozone-depleting substance, is being emitted in the central United States have been too low by as much as 40 percent, a new study led by University of Minnesota scientists shows.

The study, published today in the journal Proceedings of the National Academy of Sciences, measured how much nitrous oxide is emitted from streams in an agriculturally dense area in southern Minnesota. Agriculture, and specifically nitrogen fertilizers used in row-crop farming, is a major contributor to nitrous oxide emissions from streams, the paper notes.

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