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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: jlallen who wrote (898735)	11/6/2015 8:53:36 AM
From: Wharf Rat	Respond to of 1574854

No, the sun isn't going to save us from global warming A solar minimum would offset no more than a decade’s worth of human-caused global warming Even the grandest solar minimum would have a minor impact on global temperatures compared to the rapid warming stemming from human carbon pollution. Photograph: Solar Dynamics Observatory/Nasa Dana Nuccitelli Thursday 16 July 2015 09.00 EDT Last modified on Saturday 18 July 2015 12.36 EDT Some zombie myths just won’t die. In fact, I debunked this one two years ago right here at The Guardian. To sum up, a number of scientific studies have asked the question, ‘if the sun were to enter another extended quiet phase (a grand solar minimum), how would that impact global surface temperatures?’. Every study agrees, it would cause no more than 0.3°C cooling, which would only be enough to temporarily offset about a decade’s worth of human-caused global warming. The global mean temperature difference is shown for the time period 1900 to 2100 for the IPCC A2 emissions scenario. The red line shows predicted temperature change for the current level of solar activity, the blue line shows predicted temperature change for solar activity at the much lower level of the Maunder Minimum, and the black line shows observed temperatures through 2010. Adapted from Feulner & Rahmstorf (2010) by SkepticalScience.com theguardian.com