MIT Technology Review: Scientists are more certain than ever that human-caused climate change is happening, according to on a leaked draft of an upcoming report from the Intergovernmental Panel on Climate Change. To be precise, the group says its extremely likely, judging from a review of the scientific literature, that more than half of the temperature rise observed in the last 59 years is due to factors such as greenhouse-gas emissions from burning fossil fuels.
But the scientists also acknowledge a large degree...