It looks like the folks at CRU will need to smear another set of scientists:
The climate system may be less sensitive to greenhouse-gas warming than many models have predicted.
Nathan Gillett and his co-workers at Environment Canada in Victoria, British Columbia, analysed how well the latest Canadian Earth System Model tracked temperature changes attributable to volcanoes, man-made aerosols and rising greenhouse-gas emissions. They adjusted the model using temperature records from 1851 to 2010 — 60 years of data more than most previous analyses. The model predicted a short-term increase of 1.3–1.8 °C for a doubling of atmospheric carbon dioxide levels, which is low in the range of estimates from previous forecasts.
That's the problem with the climate models: They only work for the time period they were tweaked to match. Run them against a different time period — longer, shorter, or just a different frame — and the numbers come out upside-down. In other words, the results are fudged. This is why your they made you show your work in school.
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