Each person in the United States uses from 80 to 200 gallons (303 to 757 liters) of water a day.
Most of that is used to flush toilets.
About 70% of the freshwater in the world is consumed by agriculture.
Water is used as a solvent in manufacturing and plays an important role in the world economy.
A recent report suggests that by 2030, water demand will exceed supply by 50% in some developing regions of the world.
