Dramatic Changes in Agriculture Needed as World Warms and Grows

Outlet: sciencedaily.com

February 12, 2010

Yields from some of the most important crops begin to decline sharply when average temperatures exceed about 30 degrees Celsius, or 86 Fahrenheit. Projections are that by the end of this century much of the tropics and subtropics will regularly see growing season temperatures above that level, hotter than the hottest summers now on record.