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Lost in the coverage¹ of the so-called climategate email controversy² is a key point about the IPCC’s track record of climate change estimates. James McCarthy is on the faculty³ of the Harvard Medical School Center for Health and the Global Environment. He spoke⁴ February 21st at the annual meeting of the American Association for the Advancement⁵ of Science in San Diego:

“If you were to go back and map the IPCC projection⁶ for sea level rise and temperature in 1990, look at it in 1995, look at it in 2000. In retrospect⁷ you would find that they were conservative. So we talk about errors. If you were to do two ledgers—here are IPCC overestimates¹⁰, here are IPCC underestimates—over the 20 or so years that these assessments¹¹ have been running, the underestimate ledger⁸ would be much larger than the overestimate⁹. Even with glitches—clearly erroneous editing or sloppy¹² editing that led to these erroneous statements that got us in trouble recently.”