Global Warming and our Changing World

I saw a link on Yahoo recently to an article or video news unit about how we might go about putting human outposts on the moon and Mars. They said one option for terraforming Mars would be to add a bunch of methane gas to its atmosphere, giving it a much-needed greenhouse effect, which would warm things up to the point at which life would be sustainable.

Another thing that was mentioned was that if we were "ambitious," we might detonate nuclear weapons at the ice cap to generate liquid water.

But here's the thing. If we've got too much greenhouse gas, and Mars doesn't have enough, let's send our leftovers to Mars! Two birds with one stone...