23 April 2021
Vol 372, Issue 6540

About The Cover

Cover image expansion

COVER A farmer overlooks a dry well in Madhya Pradesh, India. Wells provide billions of people with drinking water and supply 40% of the water used for global irrigation. Scientists have shown that millions of wells may run dry if groundwater levels decline by only a few meters. This research can inform policies designed to support sustainable groundwater use and protect wells from running dry. See pages 344 and 418.
Photo: Prashanth Vishwanathan/Bloomberg via Getty Images