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Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Thomas A Watson who wrote (41732)	8/1/2013 11:41:42 PM
From: Wharf Rat	1 Recommendation Recommended By Land Shark Read Replies (2) \| Respond to of 86355

"sun the is the real driver of global termperatures may go into a quiet period and that causing cooling will lessen the death cause by the pixie dust zealots." Not even with a Grand Minimum It remains to be seen whether this prognosis turns out to be true (there have been some doubts expressed), but since grand minima of solar activity did occur in the past, it is certainly interesting to explore what effects such a minimum might have on 21st century climate if it did occur. This is precisely the question Stefan Rahmstorf and I investigated in a study published last year (see also our press release. (Earlier estimates for the size of this effect can be found here and here.) In our study we find that a new Maunder Minimum would lead to a cooling of 0.3°C in the year 2100 at most – relative to an expected anthropogenic warming of around 4°C. (The amount of warming in the 21st century depends on assumptions about future emissions, of course). ...It is clear that if a grand minimum were to happen it would be a tremendously exciting opportunity for solar physicists, however it is unlikely to be very exciting for anyone else. realclimate.org