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CO2 climate sensitivity 'overestimated' 
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I haven't seen my friends in so long
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CO2 climate sensitivity 'overestimated' BBC Clicky

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Assessing impacts of future anthropogenic carbon emissions is currently impeded by uncertainties in our knowledge of equilibrium climate sensitivity to atmospheric carbon dioxide doubling. Previous studies suggest 3 K as best estimate, 2 to 4.5 K as the 66% probability range, and nonzero probabilities for much higher values, the latter implying a small but significant chance of high-impact climate changes that would be difficult to avoid. Here, combining extensive sea and land surface temperature reconstructions from the Last Glacial Maximum with climate model simulations, we estimate a lower median (2.3 K) and reduced uncertainty (1.7 to 2.6 K 66% probability). Assuming paleoclimatic constraints apply to the future as predicted by our model, these results imply lower probability of imminent extreme climatic change than previously thought.


Now I've never disputed that the climate is changing, we're on a frickin planet of course it changes, but I'm pleased that they've finally started using data beyond the past 150 years for their modelling as that's just a blink of the eye with regards to the timescale of planetary climate change.

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Mon Nov 28, 2011 6:31 pm
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This is why many geologist are skepitcs. If you look at prevoius inter glacials etc.....

EDIT

By many I don't mean "lots", I just mean more so than the general population.

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Mon Nov 28, 2011 7:21 pm
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