Now, I'm not sure what the conclusion is, but it's really sticking it to those environmentalists and crazy scientists who think global warming is a bad thing!
But, don't worry, he also wants us to know how silly environmentalists can be, since "their own bodies will expel more greenhouse gasses than their cars ever will."
That's right, guys: farts (and breathing!) cause global warming.
There's a lot of silly in this post. melvin_udall warns the world of environmentalists, claiming that they want to cause mass starvation and crash the economy (source), while ccnuggie doesn't see the big deal because Mars is getting hotter, too (source).
Big old buckets of dumb.