IPCC Report on Climate Change Leaked

Early drafts of the next report by the Intergovernmental Panel on Climate Change were leaked online Thursday by climate skeptic website StopGreenSuicide.com. The site published the first section in a four-part report, due to be completed in October 2014. In…

Is Humanity Pushing Earth Past a Tipping Point?

Could human activity push Earth’s biological systems to a planet-wide tipping point, causing changes as radical as the Ice Age’s end — but with less pleasant results, and with billions of people along for a bumpy ride? It’s by no…