Monday, June 18, 2012

Global warming: second thoughts of an environmentalist

German environmentalist, Professor Fritz Vahrenholt says:

For many years, I was an active supporter of the IPCC and its CO2 theory. Recent experience with the UN's climate panel, however, forced me to reassess my position. In February 2010, I was invited as a reviewer for the IPCC report on renewable energy. I realised that the drafting of the report was done in anything but a scientific manner. The report was littered with errors and a member of Greenpeace edited the final version. These developments shocked me. I thought, if such things can happen in this report, then they might happen in other IPCC reports too.
Good practice requires double-checking the facts.
 He should have known that climate scientists don't believe in fact checking, audits or replication.  Nobody checks anyone else's work.  Ever.

 the IPCC's current climate models cannot explain the climate history of the past 10,000 years. But if these models fail so dramatically in the past, how can they help to predict the future? Furthermore, what is little known is that CO2 also requires a strong amplifier if it were to aggressively shape future climate as envisaged by the IPCC. CO2 alone, without so-called feedbacks, would only generate a moderate warming of 1.1°C per CO2 doubling. The IPCC assume in their models that there are strong amplification processes, including water vapour and cloud effects which, however, are also still poorly understood, like solar amplification.
  Rather than being largely settled, there are more and more open climate questions which need to be addressed in an impartial and open-minded way. ... we need comprehensive research on the underestimated role of natural climate drivers.

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