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Climate chief was told of false glacier claims before Copenhagen
The chairman of the leading climate change watchdog was informed that claims about melting Himalayan glaciers were false before the Copenhagen summit, The Times has learnt.

Rajendra Pachauri was told that the Intergovernmental Panel on Climate Change assessment that the glaciers would disappear by 2035 was wrong, but he waited two months to correct it. He failed to act despite learning that the claim had been refuted by several leading glaciologists.

The IPCC’s report underpinned the proposals at Copenhagen for drastic cuts in global emissions.

Dr Pachauri, who played a leading role at the summit, corrected the error last week after coming under media pressure. He told The Times on January 22 that he had only known about the error for a few days. He said: “I became aware of this when it was reported in the media about ten days ago. Before that, it was really not made known. Nobody brought it to my attention. There were statements, but we never looked at this 2035 number.”

Asked whether he had deliberately kept silent about the error to avoid embarrassment at Copenhagen, he said: “That’s ridiculous. It never came to my attention before the Copenhagen summit. It wasn’t in the public sphere.”

However, a prominent science journalist said that he had asked Dr Pachauri about the 2035 error last November. Pallava Bagla, who writes for Science journal, said he had asked Dr Pachauri about the error. He said that Dr Pachauri had replied: “I don’t have anything to add on glaciers.” ...

Climategate: NOAA and NASA Complicit in Data Manipulation
...However, the global surface station data is seriously compromised.

There was a major station dropout — and an increase in missing data from remaining stations — which occurred suddenly around 1990. Just about the time the global warming issue was being elevated to importance in political and environmental circles.

A clear bias was found towards removing higher elevation, higher latitude, and rural stations — the cooler stations — during this culling process, though that data was not also removed from the base periods from which “averages,” and then anomalies, were computed.

The data also suffers contamination by urbanization and other local factors, such as land-use/land-cover changes and improper siting....

...Actually Klotzbach et al. (2009) found that when the satellites were first launched, their temperature readings were in relatively good agreement with the surface station data. There has been increasing divergence over time (exceeding 0.4C now), but the divergence does not arise from satellite errors. Further, they found that the divergence between surface and lower-tropospheric measurements, which has probably continued, is consistent with evidence of a warm bias in the surface temperature record....