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Post by jonsdigs on Jul 31, 2007 17:19:50 GMT -5
9000 Years of Central European Winter Temperatures ReferenceMangini, A., Verdes, P., Spotl, C., Scholz, D., Vollweiler, N. and Kromer, B. 2007. Persistent influence of the North Atlantic hydrography on central European winter temperature during the last 9000 years. Geophysical Research Letters 34: 10.1029/2006GL028600. What was doneExtending the work of Mangini et al. (2005), who developed a 2000-year temperature history of the central European Alps based on an analysis of δ18O data obtained from stalagmite SPA 12 of Austria's Spannagel Cave, Vollweiler et al. (2006) used similarly-measured δ18O data obtained from two adjacent stalagmites (SPA 128 and SPA 70) within the same cave to create a master δ18O history covering the last 9000 years, which Mangini et al. (2007) compared with the Hematite-Stained-Grain (HSG) history of ice-rafted debris in North Atlantic Ocean sediments developed by Bond et al. (2001), who had reported that "over the last 12,000 years virtually every centennial time-scale increase in drift ice documented in our North Atlantic records was tied to a solar minimum." Full Story
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Brian Roebuck
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Caver
Caving - the one activity that really brings you to your knees!
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Post by Brian Roebuck on Aug 1, 2007 5:35:28 GMT -5
Finally some scientists are showing that "global warming" may not be induced by people and increases in air pollution etc. The last sentance of the referenced article states: "there is every reason to believe that the global warming of the past century was neither unprecedented nor CO2-induced. Rather, it appears to have been nothing special and solar-induced." I also believe that we do not have a database large enough reaching into the past that can tell us if what is happening is normal or abnormal for our planet. It is like trying to measure the growth of a child over one day and figuring out how tall he will be in 50 years. Not too accurate...
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