15 Jun '11, 6pm

A Solar Scientist Rebuts a Cool Sunspot Prediction

Douglas Biesecker, a scientist at the Space Weather Prediction Center of the National Oceanic and Atmospheric Administration and the leader of an international effort to chart and forecast trends in sunspots , has offered a detailed new critique of three lines of analysis predicting a long and deep lull in sunspot activity , with substantial potential impacts on Earth’s climate (and climate policy). The last such hiatus in the sunspot cycle, the Maunder Minimum from 1645 to 1715, coincided with a prolonged stretch of cool temperatures, particularly in winter in the Northern Hemisphere. Why there is no evidence for a new maunder minimum View more presentations from Andrew Revkin Biesecker sent me a detailed written critique that I’ve posted online , along with the Powerpoint presentation above. Both are quite technical, but I thought it worth posting them here in toto. I’ll...

Full article: http://dotearth.blogs.nytimes.com/2011/06/15/a-solar-scie...

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