claim: in 1995 one scientist at the IPCC – Jonathan Overpeck – wrote an email to a colleague claiming ‘we have to get rid of the Medieval Warm Period.’
evidence: When the IPCC TAR was still in draft, Fred Singer held a press event saying We don't accept this with Wibjorn Karlen who alleged that MBH99 showed neither a Medieval Warm Period nor a Little Ice Age, an inaccurate claim echoed soon afterwards by John Lawrence Daly.