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Politics : View from the Center and Left
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To: Wharf Rat who wrote (154392)1/14/2011 10:26:09 PM
From: Wharf Rat  Read Replies (1) of 541835
 
I can hardly wait for the day the denialists whine that scientists were too conservative in their warnings, and they are to blame for cities drowning.

CO2 May Actually Have Twice the Effect on Temperature Climate Models Predict! (NOT GOOD)
January 14, 2011 in Global Warming, Science

Paleoclimate data suggests CO2 “may have at least twice the effect on global temperatures than currently projected by computer models”
That’s the subheading of a piece over on Climate Progress covering a new review and analysis of CO2 and temperature data from our Earth’s history. The results are astounding because they show the possibility of much greater warming than climate computer models show due to positive feedback cycles (nothing climate scientists aren’t aware of, to be honest, since they know they do not include these tremendous feedbacks in their models, but something most lay readers are likely not aware of and something of tremendous importance). Here’s a full re-post of Dr Joe Romm’s piece, Science stunner: On our current emissions path, CO2 levels in 2100 will hit levels last seen when the Earth was 29°F (16°C) hotter, since it’s such an important one:

The disinformers claim that projections of dangerous future warming from greenhouse gas emissions are based on computer models. In fact, ClimateProgress readers know that the paleoclimate data is considerably more worrisome than the models (see Hansen: ‘Long-term’ climate sensitivity of 6°C for doubled CO2). That’s mainly because the vast majority of the models largely ignore key amplifying carbon-cycle feedbacks, such as the methane emissions from melting tundra (see Are Scientists Underestimating Climate Change)...

planetsave.com
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