Guest essay by Christopher Monckton of Brenchley
In 1990, the IPCC’s First Assessment Report showed a schematic demonstrating the then understanding that the medieval warm period had been appreciably warmer than the present and that the Little Ice Age had been colder. However, in 1995 Dr. Jonathan Overpeck, an IPCC scientist, wrote an email to Dr. David Deming to say, “We have to abolish the medieval warm period.”
By 2001, the IPCC’s Third Assessment Report had obliged; and, notwithstanding my Expert Review of the draft Fifth Report, in which I had listed some 400 papers from the medieval warm period database at www.co2science.org establishing by measurement that the medieval warm period was real, was global and was almost everywhere warmer than the present, the IPCC defied the evidence and preferred the models that had been shown to be defective (McIntyre & McKitrick, 2005).
Figure 1. A frost fair on the River Thames in 1694, near the end of the Little Ice Age that – according to IPCC (2001) – never happened.
In the autumn of 2013, the Government of Colombia invited me to Bogota, where, after several university lectures and two addresses to Simón Bolívar’s anti-corruption department, the Procuraduria, I was also asked to give a lecture to 200 trainees at the Army School of Intelligence and Counter-Intelligence.