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Solar Cooling: What Does It Mean For Us?

05/28/2009 05:12 am ET | Updated May 25, 2011

The sun's activity is winding down, triggering fevered debate among scientists about how low it will go, and what it means for Earth's climate. Nasa recorded no sunspots on 266 days in 2008 - a level of inactivity not seen since 1913 - and 2009 looks set to be even quieter. Solar wind pressure is at a 50-year low and our local star is ever so slightly dimmer than it was 10 years ago.

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