The problem is spatial distribution, not amounts. Saying we have far more than is being used is true, but misses the forest for the trees. Some areas have lot

The problem is spatial distribution, not amounts. Saying we have far more than is being used is true, but misses the forest for the trees. Some areas have lots of water resources, some don't. Unfortunately our water usage is almost inversely correlated to water resource availability. Arid soils are _incredibly_ productive when irrigated, so we grow a lot of crops in the desert (or semi-desert). Also, people like to live in dry, sunny places. Dry, sunny places usually don't have abundant water resources.