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Single-celled algae called diatoms live in lakes and provide a proxy for paleoclimate data. University of Arkansas professor Sonja Hausmann has linked changes in fossil diatom communities to sun spot cycles.

Small Organisms, Great Proxies

1 posted on 01/11/2007 10:47:56 PM PST by SunkenCiv
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2 posted on 01/11/2007 10:48:35 PM PST by SunkenCiv ("I've learned to live with not knowing." -- Richard Feynman https://secure.freerepublic.com/donate/)
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3 posted on 01/11/2007 10:49:30 PM PST by SunkenCiv ("I've learned to live with not knowing." -- Richard Feynman https://secure.freerepublic.com/donate/)
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To: SunkenCiv
reflects a climate-changing event at the end of the last Ice Age more than 8,000 years ago

Who'd a thunk?

4 posted on 01/12/2007 6:42:30 AM PST by AndrewC (Duckpond, LLD, JSD (all honorary))
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