HolyCoast: Ole Sol is On a Break
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Friday, April 03, 2009

Ole Sol is On a Break

I've been beating the drum about the solar connection to global warming - and global cooling - for some time. After peaking in 1998 temperatures have been heading downward ever since, and this could be what's causing that:

There were no sunspots observed on 266 of the year's 366 days (73%). To find a year with more blank suns, you have to go all the way back to 1913, which had 311 spotless days: plot. Prompted by these numbers, some observers suggested that the solar cycle had hit bottom in 2008.

Maybe not. Sunspot counts for 2009 have dropped even lower. As of March 31st, there were no sunspots on 78 of the year's 90 days (87%).

It adds up to one inescapable conclusion: "We're experiencing a very deep solar minimum," says solar physicist Dean Pesnell of the Goddard Space Flight Center.

"This is the quietest sun we've seen in almost a century," agrees sunspot expert David Hathaway of the Marshall Space Flight Center.

If you're a science nerd you ought to read the whole article. Lots of stuff about how the sun may influence the temps around here in the next few years.

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