The problem is spatial distribution, not amounts.<p>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&#x27;t.<p>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&#x27;t have abundant water resources.