A study of global freshwater supplies finds that agriculture accounts for 92% of use. Water-hungry grains such wheat, rice and corn account for 27% of the world's water footprint. Meat and dairy account for 22% and 7%, respectively. The study published in the Proceedings of the National Academy of Sciences found that the U.S. is the third-largest consumer of freshwater after China and India, though it has larger per capita consumption than those countries.
Published in Brief: