BiotechMashup

(The Earth Institute at Columbia University) Expanded irrigation has made it possible to feed the world's growing billions -- and it may also temporarily be counteracting the effects of climate change in some regions, say scientists in a new study. But some sources of irrigation water are projected to dry up in coming decades and when they do, people may face the double whammy of food shortages and higher temperatures. A new study in the Journal of Geophysical Research pinpoints where the trouble spots may be.