Whether humans, cars, or farting cows are doing the global warming, which I also believe is total crap, the earth goes through cycles of renewal.  This is proven in how the universe moves and our solar system within it.  This is proven by how the earth and its oceans move within and as a result of gravity brought on not only by our moon, but also the solar system.  The ice caps in the north will be gone in September, according to several NOAA scientists and landowners in Iceland who've been tracking the decline of snow and ice in their region for decades, now.

Because of the way our environment planetwide is constructed, the planet is made to renew itself, and it will do it no matter how many human beings there are.  The more people, the more upheaval of mother earth.  There are volcano's that go off once every 600 years, and we really don't know when the last time was in the U.S. that these volcanoes went off because records for our nation have only been in keeping for the last 300 years.  When Yosemite, Mount Hood, and half a dozen other mountains go off within the next 250 years or so, and when places like San Francisco and all of those along the San Andreas fault go off, people will die, the environment will renew itself, and we humans will begin our viral spread yet again.

The earth will take care of itself.  However, it's not a bad idea to keep ourselves healthier through developing clean-burning or green technologies, and I believe it will help us into the next step of our 'evolution' -for those of you who believe in that other nonsense, I mean our technology, our knowledge framework, not how we as human beings will adapt- so we can get out into space and begin exploring.

'Nuff said, I have an IMPS movie to watch.