16 Jun '11, 12am

How would a Solar Grand Minimum affect AGW? a reduction of < 0.3°C the predicted 3.7°C->4.5°C warming by 2100

How would a Solar Grand Minimum affect AGW? a reduction of < 0.3°C the predicted 3.7°C->4.5°C warming by 2100

How would a Solar Grand Minimum affect global warming? Posted on 16 June 2011 by John Cook Solar physicists have issued a prediction that the sun may be entering a period of unusually low activity called a grand minimum. This has climate skeptics speculating that solar 'hibernation' may be our get-out-of-jail-free card, cancelling out any global warming from our CO2 emissions. However, peer-reviewed research has examined this very scenario, "On the effect of a new grand minimum of solar activity on the future climate on Earth" (Feulner & Rahmstorf 2010). What they found was even if the sun fell into a grand minimum, global temperature would be diminished by no more than 0.3°C. The sun is not our get-out-of-jail-free card. Figure 1: Global mean temperature anomalies 1900 to 2100 relative to the period 1961 to 1990 for the A2 scenario. The red line represents temperature cha...

Full article: http://www.skepticalscience.com/How-would-Solar-Grand-Min...

Tweets

If the sun goes into ‘hibernation,’ it won’t stop global warming: via @grist

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science

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