The IPCC, and its legion of green-sharia scientists on the taxpayer dole, have publicly stated that the climate sensitivity to atmospheric CO2 levels is high, with a predicted result of dangerous accelerated warming - the NOAA global temperature dataset proves that climate sensitivity is likely a fraction of IPCC's estimate
(click on image to enlarge - data sources)
The UN's IPCC continues to claim that the climate is highly sensitive to CO2 levels. This high sensitivity, in combination with the mythical positive feedbacks, will thus supposedly increase global warming some 4 to 6 degrees centigrade by year 2100.
However, the actual temperature data do not support this speculative AGW hypothesis. If the climate was highly sensitive to CO2, then the adjacent plot of data would look substantially different.
Because of the huge increase over the 50 years ending 2012, the global temperature increase should be significantly larger than the previous 50-year period ending 1962. Clearly, levels of atmospheric CO2 are not as all powerful as the IPCC fear-mongering would have us believe.
In fact, despite an increase of CO2 levels that was 4 times larger than the previous 50-year period, the global temperatures ending 2012 increased less, suggesting that the climate sensitivity to CO2 ranges from lame to very weak.