Sunspots and Climate Change: Study Shows Humans Still Play the Key Role
source: http://solveclimate.com/blog/20100219/sunspots-and-climate-change-study-shows-humans-still-p...
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Solar cycles of magnetic fields and sunspots have become a popular foothold for climate change skeptics. A new study in the journal Geophysical Research Letters, however, shows that even if predictions of an extended minimum of solar activity are accurate, it will have only a tiny effect on the Earth’s climate in comparison to the current track of human-caused warming.
“There is a lot of hysterical stuff out there,” said Gavin Schmidt, a climatologist at NASA’s Goddard Institute for Space Studies. “For some reason, solar effects seem to attract more than their fair share of cranks. There are always people with these statistical models claiming that it would have a big effect, but mostly that’s just nonsense.”
The new study, conducted by Georg Feulner and Stefan Rahmstorf of the Potsdam Institute for Climate Impact Research in Germany, modeled what might happen to global temperatures if the sun enters a period of low magnetic and sunspot activity resembling that of the Maunder Minimum.
The Maunder Minimum was the last extended period of decreased solar activity, from about 1650 to 1710. (Normally, solar magnetic cycles last 11 years.) At the time, it was associated with markedly cooler temperatures, but that was before the Industrial Revolution and the beginning of modern emissions of greenhouse gases from widespread fossil fuel use. ...
http://solveclimate.com/blog/20100219/sunspots-and-climate-change-study-shows-hu...
“There is a lot of hysterical stuff out there,” said Gavin Schmidt, a climatologist at NASA’s Goddard Institute for Space Studies. “For some reason, solar effects seem to attract more than their fair share of cranks. There are always people with these statistical models claiming that it would have a big effect, but mostly that’s just nonsense.”
The new study, conducted by Georg Feulner and Stefan Rahmstorf of the Potsdam Institute for Climate Impact Research in Germany, modeled what might happen to global temperatures if the sun enters a period of low magnetic and sunspot activity resembling that of the Maunder Minimum.
The Maunder Minimum was the last extended period of decreased solar activity, from about 1650 to 1710. (Normally, solar magnetic cycles last 11 years.) At the time, it was associated with markedly cooler temperatures, but that was before the Industrial Revolution and the beginning of modern emissions of greenhouse gases from widespread fossil fuel use. ...
http://solveclimate.com/blog/20100219/sunspots-and-climate-change-study-shows-hu...
