From the Bible-thumping science-denying kooks at some rightwing nutjob publication known as "The Economist"....
The "sky is falling" climate scientists must now deal with the real world data, as it is....not just use computer models to predict calamity ...sucks, doesnt it?
The mismatch between rising greenhouse-gas emissions and not-rising temperatures is among the biggest puzzles in climate science just now. It does not mean global warming is a delusion.[you sure about that?]
Flat though they are, temperatures in the first decade of the 21st century remain almost 1°C above their level in the first decade of the 20th. But the puzzle does need explaining.
The mismatch might mean that--for some unexplained reason--there has been a temporary lag between more carbon dioxide and higher temperatures in 2000-10. Or it might be that the 1990s, when temperatures were rising fast, was the anomalous period. Or, as an increasing body of research is suggesting, it may be that the climate is responding to higher concentrations of carbon dioxide in ways that had not been properly understood before. This possibility, if true, could have profound significance both for climate science and for environmental and social policy.
It is possible, therefore, that both the rise in temperatures in the 1990s and the flattening in the 2000s have been caused in part by natural variability.
"So what does all this amount to? The scientists are cautious about interpreting their findings. As Dr Knutti puts it, "the bottom line is that there are several lines of evidence, where the observed trends are pushing down, whereas the models are pushing up, so my personal view is that the overall assessment hasn’t changed much."
The scientists were not cautious about going all "Al Gore" and predicting calamity, for their political overseers...but now they get cautious when the real world data doesnt confirm their theory....
Is the good Doctor Knutti saying, ignore the real world, and rely upon computer models? That is seemingly what he is saying....
Bottom line: Scientists do not know with certainty what they told us they knew with certainty.
Read more: http://www.economist.com/news/science-and-technology/21574461-climate-may-be-heating-up-less-response-greenhouse-gas-emissions#ixzz2Owzdcaa2