It’s Cold Outside. What Happened to Global Warming?
Andrew Revkin in the New York Times : Stefan Rahmstorf of Potsdam University has written a fresh and detailed review of studies showing that (surprise~!) global warming is still under way despite the recent pause / plateau / hiatus / slowdown / standstill (choose one) in the planet’s mean temperature.
A graph posted by the RealClimate and KlimaLounge blogs tracks temperature, carbon dioxide levels and solar activity.Credit KlimaLounge
Revkin includes an excellent video clip that explains the difference between trend and variation.