It only takes a few seconds to heat up, and it has a huge temperature gain (again, great in extremely cold climates). (tinyhousegiantjourney.com)
Conversely a low forcing giving rise to the same observed temperature gain implies a high climate sensitivity. (climateaudit.org)
This has never made much sense in the context of greenhouse warming theory (though its proponents have tied themselves into pretzels trying to explain it) since global warming theory (as embodied in the last IPCC report) holds that the largest temperature gains should be in the lower troposphere over the tropics, and offers no reason why the warming in the Artic should be orders of magnitude larger than in the Antarctic. (climate-skeptic.com)