Climate change is affecting crop yields and reducing global food supplies

0

Posted by admin | Posted in Agri Knowledge, Climate Change, Food Security | Posted on 10-07-2019

Farm land near Holly Bluff, Miss., covered with backwater flooding, May 23, 2019. AP Photo/Rogelio V. Solis

Deepak Ray, University of Minnesota

Farmers are used to dealing with weather, but climate change is making it harder by altering temperature and rainfall patterns, as in this year’s unusually cool and wet spring in the central U.S. In a recently published study, I worked with other scientists to see whether climate change was measurably affecting crop productivity and global food security.

To analyze these questions, a team of researchers led by the University of Minnesota’s Institute on the Environment spent four years collecting information on crop productivity from around the world. We focused on the top 10 global crops that provide the bulk of consumable food calories: Maize (corn), rice, wheat, soybeans, oil palm, sugarcane, barley, rapeseed (canola), cassava and sorghum. Roughly 83 percent of consumable food calories come from just these 10 sources. Other than cassava and oil palm, all are important U.S. crops. Read the rest of this entry »