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Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Land Shark who wrote (36181)	12/6/2012 10:09:44 AM
From: longnshort	1 Recommendation Read Replies (1) \| Respond to of 86356

"You think it happens in a decade." less, in just a couple of years. google it

To: Land Shark who wrote (36181)	12/7/2012 7:12:36 PM
From: Bilow	1 Recommendation Respond to of 86356

Hi Land Shark; Re: "You've a clear miscomprehension of the time scales involved in transitioning between glacial periods. You think it happens in a decade. You're wrong. AGW, on the other hand, is happening at the speed of light in geological time scales. You clowns turn the science into a farce with your nonsense." Oh really? Here's some peer reviewed literature giving you a sense of the science at this time. They know the transitions are fast, but they don't quite know how fast (because temperatures are hard to pin down to specific years): Sudden climate transitions during the Quaternary Progress in Physical Geography 23,1 (1999) pp. 1–36 Jonathan Adams, 1 Mark Maslin 2 and Ellen Thomas 3 1 Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 2 Environmental Change Research Centre, Department of Geography, University College London, 26 Bedford Way, London WC1H 0AP, UK 3 Center for the Study of Global Change, Department of Geology and Geophysics, Yale University, PO Box 208109, New Haven, CT 06520-8109, USA, and Department of Earth and Environmental Sciences, Wesleyan University, 265 Church Street, Middletown, CT 06459-0139, USA "The time span of the past few million years has been punctuated by many rapid climate transitions, most of them on timescales of centuries to decades. The most detailed information is available for the Younger Dryas-to-Holocene stepwise change around 11 500 years ago, which seems to have occurred over a few decades. The speed of this change is probably representative of similar but less well studied climate transitions during the last few hundred thousand years. These include sudden cold events (Heinrich events/stadials), warm events (interstadials) and the beginning and ending of long warm phases, such as the Eemian interglacial. Detailed analysis of terrestrial and marine records of climate change will, however, be necessary before we can say confidently on what timescale these events occurred; they almost certainly did not take longer than a few centuries." Until a few decades ago it was generally thought that large-scale global and regional climate changes occurred gradually over a timescale of many centuries or millennia, scarcely perceptible during a human lifetime. The tendency of climate to change relatively suddenly has been one of the most surprising outcomes of the study of earth history, specifically that of the last 150 000 years (e.g., Taylor et al., 1993). Some and possibly most large climate changes (involving, for example, a regional change in mean annual temperature of several degrees celsius) occurred at most on a timescale of a few centuries, sometimes decades, and perhaps even just a few years. ftp://meteor.geol.iastate.edu/data/2005/stuff/adamsetal99.pdf -- Carl