A conversation with John Christy, for Association des climato-réalistes

by Grégoire Canlorbe

John Raymond Christy is a climate scientist at the University of Alabama in Huntsville (UAH) whose chief interests are satellite remote sensing of global climate and global climate change.  In February 2019 he was named as a member of the EPA Science Advisory Board.

[This interview is being reprinted with the permission of the author.  It was originally published on 28 June 2019 by Friends of Science, Calgary and can be found in the link provided in the  paragraph that follows.  Ed.]

Satellite in orbit around earth. Image from Pixabay.com

In May 2019 he was interviewed by Grégoire Canlorbe for Association des climato-réalistes, the only climate-realist association in France.  The conversation was first published in the French journal Valeurs Actuelles (in a French edited version), and on Friends of Science (in the original English version).

Grégoire Canlorbe: You have been at pains to show that climate models are over-predicting warming by roughly a factor of two. Could you come back to this alleged falsification?

John Christy: We should be applying the scientific method to claims scientists (and others) are making about the climate. In this case I downloaded the output from 102 climate model simulations used by the IPCC and compared the tropospheric temperature since 1979 between the models and several observational datasets, including the satellite dataset we generate. The models on average were warming the atmosphere at a rate Continue reading “A conversation with John Christy, for Association des climato-réalistes”