I'm thinking James Lovelock the author of "The Vanishing Face of Gaia" is onto something. But maybe it's information we are just incapable of processing.
Still, I think it's plausible, as he says, "You can't put something like a trillion tons of carbon dioxide into the atmosphere without something nasty happening."
Lovelock thinks we're in for a major population reduction. It's kind of like we're the germs, and global warming is the fever. Gaia is sick, the fever will break, and all hell breaks loose.
And I'm sure every germ thinks it is the center of the universe! Guess what germ!