Earth's Climate Outside 'Safe Operating Space' : Discovery News

Sept. 24, 2009 -- We are on the verge of pushing nature into a state of instability like nothing humanity has seen before, according to a study published in the journal Nature.

The study, which attempted for the first time to come up with real numbers for a set of conditions beyond which Earth may not be able to recover, found that we may have already crossed several tipping points.

Read it all at Discovery News