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Comment on Climate scenarios: 2015-2050 by Vaughan Pratt

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<i>The first decade of the 21st century was supposed to warm by 0.2 degC according to IPCC. It didn’t warm at all (maybe even cooled slightly).</i> If you look at too short a time frame, extrapolation to 10x that time frame is meaningless. If you look at <a href="http://www.woodfortrees.org/plot/best/from:1970/mean:12/plot/best/from:1970/trend" rel="nofollow">the last 40 years of BEST data</a> it's pretty obvious where that will end up in 2100. Notice that between 2007 and 2010 the temperature went down substantially. So certainly there have been recent declines. But in the context of the whole graph, how meaningful would you say that latest decline was? There were plenty just as severe before it over the past 40 years.

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