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Re: What happened to global warming ?
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Originally Posted by Commodore
In other words the Earth doesn't actually have to be warming for it to, you know, be warming.  |
The continues to war despite short term cooling. This past decade was approx. 0.11 degrees celsius warmer than the previous decade.
Figure 1. Global temperature according to NASA GISS data since 1980. The red line shows annual data, the larger red square a preliminary value for 2009, based on January-August. The green line shows the 25-year linear trend (0.19 ºC per decade). The blue lines show the two most recent ten-year trends (0.18 ºC per decade for 1998-2007, 0.19 ºC per decade for 1999-2008) and illustrate that these recent decadal trends are entirely consistent with the long-term trend and IPCC predictions. Even the highly “cherry-picked” 11-year period starting with the warm 1998 and ending with the cold 2008 still shows a warming trend of 0.11 ºC per decade (which may surprise some lay people who tend to connect the end points, rather than include all ten data points into a proper trend calculation).
RealClimate: A warming pause?
Andrew
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