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Re: Cave Study Links Climate Change To California Droughts

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avatar Cave Study Links Climate Change To California Droughts
November 10, 2009 08:48PM
ScienceDaily (Nov. 10, 2009) — California experienced centuries-long droughts in the past 20,000 years that coincided with the thawing of ice caps in the Arctic, according to a new study by UC Davis doctoral student Jessica Oster and geology professor Isabel Montañez.

http://www.sciencedaily.com/releases/2009/11/091110171741.htm
Re: Cave Study Links Climate Change To California Droughts
November 11, 2009 07:13AM
Wait. Ice caps were thawing 20,000 years ago?
What big business was around to blame it on?
What kind of carbon footprint did the cavepeople have?
That can't be part of a natural cycle, can it?
avatar Re: Cave Study Links Climate Change To California Droughts
November 11, 2009 07:25AM
Bolling–Allerod—A period of warm climate beginning abruptly approximately 14 700 years ago, following the end of the Pleistocene, and extending to approximately 12 700 years ago.
This warm period ended with a return to cold conditions during the Younger Dryas. Traditionally, this period is divided into the Bolling (warm), Older Dryas (cold), and Allerod (warm) intervals, but recent, more detailed climatic records indicate that the entire Bolling–Allerod period was generally warm with several abrupt coolings.
Broeker, W. S., 1992: Defining the boundaries of the late-glacial isotope episodes. Quat. Res., 38, No.1, 135– 138.

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The issue is not the absolute temperature change but the rapidity of temperature change. These events occured over many hundreds or thousands of years, not 100-150 years recently demonstrated.



The cure for a fallacious argument is a better argument, not the suppression of ideas.
-- Carl Sagan
avatar Re: Cave Study Links Climate Change To California Droughts
November 11, 2009 07:36AM
I agree. It's the rate of change on this perhaps normal heating cycle that is worrisome.



Old Dude
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