Are you absolutley, positively sure about that?
In any event the US population is growning due to immigration both legal and illegal. Resources are stretched thin now. Atlanta came within 90 days of running out of water due to drought. The southwest has suffered drought for years. Lakes Powell and Meade are way down. The Colorado River dries up miles before it gets to its mouth. Our quest for ethanol will have farmers plowing under marginal lands for corn. Fl is in danger of having its water table turn to salt water due to overuse.
Time for this nation to stabilize its population before we wind up a cesspool like India or China.
No I am not 100% positive but then, neither are you Clay.
The ethanol thing is a boondoggle and not very energy efficient at all but, like global warming it is more religeon than science.
As to other resources most of the problem is mis-management. Heck here in Tampa/St Pete they can't even figure out how to run a desal plant!
If we close the boarders and enforce the law MANY of our problems will fix themselves.