Skip to main content

Stories by Alan R. Townsend

Fixing the Global Nitrogen Problem

Humanity depends on nitrogen to fertilize croplands, but growing global use is damaging the environment and threatening human health. How can we chart a more sustainable path?

February 1, 2010 — Alan R. Townsend and Robert W. Howarth

Back to School

Get 50% off digital subscriptions of Scientific American and Scientific American MIND!