'Do the math' on water, food situation - mySanAntonio.com

mySanAntonio.com
'Do the math' on water, food situation
mySanAntonio.com
This file photo shows corn fields in D'Hanis, Texas where center pivot irrigation takes place. It takes a lot of water to feed us. About 2/3 of all water usage in the U.S. is for food production. This file photo shows corn fields in D'Hanis, Texas ...