Leaked report: Global warming is actually happening.
Brace yourselves for more global warming news. The Intergovernmental Panel on Climate Change is ready to post its next report. Most of us, like Scientific American, won’t really be surprised by its contents. (Yes, we’re getting warmer. Yes, it seems to be because people have made machines that pump out carbon dioxide and methane like crazy.) But the guy who leaked the report early probably was expecting a bigger surprise inside:
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 temperatures since the 1950s.”