Go. Built it -- on the Moon, on Mars. As we do we'll learn more and more ways to clean up the mess here.

For instance: why is everyone wasting "waste water?" Why not clean it up -- and I mean your sewage as well -- and reuse it? It's already being done on a small scale out here in The West -- why isn't it done in NYC or LA? We learned to do it from the ISS and its predecessors.

As a solution to population pressure space travel as we have it now will never solve the problem (and Malthus was right -- we've just delayed the inevitable in "developed countries". But it CAN allow the race to survive, and as a "homo semi-sapiens" I'd like to see that.

I won't get into the old, old "it costs more than it's worth" argument. I will simply offer ANYONE the cost to the average taxpayer of the US Space Program from 1960 to July, 1969 IF that person contracts to never again use ANYTHING derivative from the Space Program.