Grains of salt required

Stories like this remind us to maintain a healthy skepticism about anything we hear from the IPCC:

The Intergovernmental Panel on Climate Change (IPCC), set up by the UN in 1988 to advise governments on the science behind global warming, issued a report [in May] suggesting renewable sources could provide 77 per cent of the world’s energy supply by 2050. But in supporting documents released this week, it emerged that the claim was based on a real-terms decline in worldwide energy consumption over the next 40 years – and that the lead author of the section concerned was an employee of Greenpeace. Not only that, but the modelling scenario used was the most optimistic of the 164 investigated by the IPCC.

(Via Instapundit.)

POSTSCRIPT: Since I haven’t had occasion to mention it for awhile, my position continues to be that the science on historical climate change seems to be reasonably solid (with a few major exceptions), but the science that purports to predict the future is little better than guesswork.

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