Do you know of any evidence that North America, as a whole, is using more water than is falling on it? Because that's not something I've heard about thus far.

Do you know of any evidence that North America, as a whole, is using more water than is falling on it? Because that's not something I've heard about thus far. Just because we have a significant drought (or possibly "climatic shift to a drier climate") in the Southwest doesn't mean that we have the same problem everywhere in the US.