It's called feedback control in Engienering circles....but the Earth takes care of itself, see....

"...more and more icebergs are breaking off from the polar ice shelves and falling into the ocean, where they melt and release tons of iron and other minerals into the sea. Those minerals are presumably, like, forming together into ocean meteorites that will be launched from the seas by the immense pressure of accumulating carbon dioxide to-

No? They're just being gobbled up by microscopic phytoplankton whose increasing numbers in turn stimulate the entire oceanic food chain from the bottom up? Well, what the hell kind of dystopia is that? We doubt even the raw star power of a Costner or a Cusack could sell that movie.

But it's true: A 2007 study in the Weddell Sea found that the growing number of icebergs had increased biological activity by 40 percent. That's good for the fishies, but bad for the two-leggers, right? Not exactly: Aside from feeding animals, the microorganisms that feed off the icebergs are one of the biggest suckers of carbon dioxide from the atmosphere. Granted, this is a case of fixing with your right hand what you break with the left (climate change is still hitting us pretty hard, and the immense suckage of phytoplankton alone won't stop it), but it's a real testament to the Earth's forgiving adaptability. That's just how Mother Nature works: She takes the good, she takes the bad, she takes them both, and then you have the environment.