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.]
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”
It’s been long known that NASA1 GISS2 has been going through its historical temperature data archives and erasing old temperature measurements and replacing them with new, made up figures without any real legitimate reason.
This practice has led to the formation of new datasets called “adjusted” data, with the old datasets being called “V3 unadjusted”. The problem for global warming activists, however, was that when anyone looks at the old “V3 unadjusted” – i.e. untampered data – they often found a downward linear temperature trend. Such negative trends of course are an embarrassment for global warming alarmists, who have been claiming the planet is warming up rapidly.
There are numerous stories in the media about “Declining Arctic Sea Ice Extent.” This post is the story of what I found when I started looking into the specifics cited in some of those stories.
With a background in geology and as an operational meteorologist with 30 years in research and development, at the outset I became suspicious when periods of record cited as ‘lines of evidence’ were well short of the characteristic 60-year time period of naturally occurring weather events which influence my locale, New Mexico. The 60-year weather cycles which dominate North America are the Atlantic Multidecadal Oscillation for temperatures, and the Pacific Decadal Oscillation for rainfall, especially in the Mountain West of the USA, more of which is described here.
[This article is a reprint from the Climate Change Weekly, #322, with the permission of the author/editor of that periodical. The Climate Change Weekly is published by the Heartland Institute. The original article is available here. This article should be of particular interest to our forum in light of the recent discussions regarding progress, or lack thereof, in getting the skeptical point of view out to the general populace. One might conclude from this article that the skeptical community with help from climate economics may be seeing more success in changing minds than we might have thought. Ed.]
From Alberta to Australia, from Finland to France and beyond, voters are increasingly showing their displeasure with expensive energy policies imposed by politicians in an inane effort to fight purported human-caused climate change.
Skepticism about whether humans are causing dangerous climate change has always been higher in the United States than in most industrialized countries. As a result, governments in Europe, Canada, and in other developed countries are much farther along the energy-rationing path that cutting carbon dioxide emissions requires than the United States is. Residents in these countries have begun to revolt against the higher energy costs they suffer under as a result of ever-increasing taxes on fossil fuels Continue reading “Climate Politics Abroad Are Turning Decidedly Skeptical”
Suggestions from some CASF members to introduce visitors to the non-problem of catastrophic, human-caused, CO2-fueled “Global Warming” ( since the warming of the 1980s and 1990s stopped about 1998, the name needed to be changed to “Climate Change” ) have led us to a new feature, “New Visitors” short for, “New Visitors Start Here.”
The idea is to provide a short introductory paragraph (or two) and a series of links to take new visitors on a tour of many of the false claims of imminent climate catastrophe through links to short topics which demonstrate this folly. Our use of fossil fuels is causing an increase in atmospheric Carbon Dioxide, CO2 for short, but an elementary knowledge of high school chemistry, biology, general science and mathematics shows that the Continue reading “Another Feature for CASF, “New Visitors.””