GLOBAL WARMING UPDATE

A PICTURE IS WORTH A THOUSAND WORDS

http://www.theaustralian.com.au/news/features/twenty-year-hiatus-in-rising-temperatures-has-climate-scientists-puzzled/story-e6frg6z6-1226609140980

http://www.telegraph.co.uk/health/elderhealth/9959856/Its-the-cold-not-global-warming-that-we-should-be-worried-about.html

OVER the past 15 years air temperatures at the Earth’s surface have been flat while greenhouse-gas emissions have continued to soar. The world added roughly 100 billion tonnes of carbon to the atmosphere between 2000 and 2010. That is about a quarter of all the CO₂ put there by humanity since 1750. And yet, as James Hansen, the head of NASA’s Goddard Institute for Space Studies, observes, “the five-year mean global temperature has been flat for a decade.” . . .
The mismatch between rising greenhouse-gas emissions and not-rising temperatures is among the biggest puzzles in climate science just now. . .  The IPCC’s estimates of climate sensitivity are based partly on GCMs [Global Circulation Models]. Because these reflect scientists’ understanding of how the climate works, and that understanding has not changed much, the models have not changed either and do not reflect the recent hiatus in rising temperatures.  (Emphasis added.)