Experts urge faster and more relevant U.N. climate [scam] reports | Reuters

The current report "is a fairly clumsy vehicle ... covering all regions and all sectors. It is a sort of Bible written every 7 years," said Schellnhuber. The last IPCC assessment was in 2007 and the next is due in 2013-14.
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Another issue is whether the way the IPCC works needs to be reformed. Under the current system scientists and government officials agree reports together, which binds governments to the conclusions but can bring suspicions of political tampering.

"I think the IPCC should have a clearer difference between the scientific part and the political part," said Paal Prestrud, head of the Center for International Climate and Environmental Research in Oslo.