Scientific American: A rogue reviewer posted a draft this week of the Intergovernmental Panel on Climate Change's next report, in a bid to promote climate change denial. Instead the draft reaffirms humanity's starring role in global warming, which, along with sea level rise is now "unequivocal. Also human caused CO2 increases are now "virtually certain" to be responsible for trapping extra heat. And it is "extremely likely that human activities have caused more than half of the observed increase in global average surface...