Denis Rancourt's physics paper about planetary warming has been downloaded more than 1000 times

Denis Rancourt's radiation physics paper of 2011 has been download in its free-access pdf form more than 1000 times from the non-profit site archive.org:

Radiation physics constraints on global warming: CO2 increase has little effect

This paper is arguably the clearest and most accessible, yet rigorous, paper to describe the fundamental physics (radiation balance) of Earth's surface temperature phenomenon. It corrects textbook errors about interpretation, and obtains the actual mean surface temperature from first principles, using only known physical constants.

It may be the most downloaded physics paper about the Earth's surface temperature.

One physicist web commentator said:

Have you seen DGR in action ?

A recent post on ICECAP is a real winner: Jun 05, 2011 Radiation physics constraints on global warming: CO2 increase has little effect By Denis G. Rancourt, Former physics professor, University of Ottawa, Ottawa, Canada

Follow the link to a 22 page article which is a tour de force of simple physics demonstrration. DGR's presentation puts me in mind of Pauling or Feynman lectures in my Caltech days. At least cruise over the hard stuff and savor the commentary. This guy is a keeper prof who got sideways with authority at U of Ottawa and was canned. My kinda guy!!!

Hunter Paalman
Walnut Creek, CA

CHUO 89.1 FM (Ottawa) radio interview with Dr. Tom Quirk

On December 27, 2012, CHUO 89.1 FM The Train's Denis Rancourt interviewed Dr. Tom Quirk about his various studies regarding scientific claims of human impacts on global climate. We discussed cow farts, leaking gas pipes, wind farms, and untested science claims. Dr. Quirk is on the Scientific Advisory Panel of the Australian Climate Science Coalition, and is a Board Director of the Institute of Public Affairs Australia.

LINK TO RADIO INTERVIEW

CHUO 89.1 FM (Ottawa) radio interview with Marc Morano

On December 20, 2012, CHUO 89.1 FM The Train's Denis Rancourt interviewed Marc Morano about the year 2012 at Climate Depot.

LINK TO RADIO INTERVIEW

RT video features a debate about climate science with Patrick Michaels, Denis Rancourt, and Richard Milne

Denis Rancourt radio interviews Bob Carter on the science

On November 22, 2012, CHUO 89.1 FM (Ottawa) The Train's Denis Rancourt interviewed Dr. Bob Carter about climate science and professional ethics. This is one of the most lucid discussions by two scientists you will ever hear about the scientific basis of climate change.

Radio interview with climatologist Dr. Tim Ball on the politics and professional ethics of global warming agitation

On July 12, 2012, CHUO 89.1 FM (Ottawa) The Train's Denis Rancourt interviewed Professor Dr. Tim Ball, climatologist, about climate science and the politics of global warming. Fascinating history of the climatology profession... Dr. Ball is being sued for defamation in regard to his criticisms of other climate professionals. The lawsuits are on-going and Dr. Ball is committed to getting to the truth and justice. LINK TO RADIO INTERVIEW

Ray Pierrehumbert's peer review of Rancourt's planetary warming physics article "CO2 has little effect"

Dr. Denis Rancourt's "Most downloaded free-access scientific article about planetary warming physics" has been extensively commented upon and critiqued by Prof. Dr. Raymond Pierrehumbert (Louis Block Professor, Department of the Geophysical Sciences, The University of Chicago), arguably the leading establishment expert on such physics models.

See the complete email exchange HERE.

The complete email exchange was initiated by an email from Rancourt to the scientists at Real Climate and is posted HERE. Further replies will be posted as comments to the present blogpost (below).

Rancourt's January 8, 2012 email concludes:

"You are a recognized establishment-science expert in these simple models. You have not identified any errors in my model. I think you will agree that when a simple model contains no physics errors and no calculation errors and obtains correct results without over stretching (without seeking results that the model is not structurally able to legitimately obtain), then if you wish to argue that the model needs more complexity the onus is on you to demonstrate that the added complexity is required rather than being superfluous."

Most downloaded free-access scientific article about planetary warming physics

The most downloaded free-access (open-source) scientific article about planetary warming physics was first posted on Climate Guy (link) on June 3, 2011, and is available in full pdf version at archive.org here:

Radiation physics constraints on global warming: CO2 increase has little effect

(And direct link to PDF file HERE.)

Abstract – I describe the basic physics of planetary radiation balance and surface temperature, using the simplest model possible that is sufficiently realistic for correct evaluations of predicted surface temperature response sensitivities to the key Earth parameters. The model is constrained by satellite absolute integrated intensity and spectroscopic measurements and the known longwave absorption cross section of CO2 gas. I show the predicted Earth temperature for zero atmospheric resonant absorption of longwave radiation (no greenhouse effect in the otherwise identical atmosphere) to be –46 C, not –19 C as often wrongly stated. Also, the net warming effect from the atmosphere, including all atmospheric processes (not just greenhouse forcing), without changing anything else (except to add the removed atmosphere) is +18 C, not the incorrect textbook value of +33 C. The double-layer atmosphere model with no free parameters provides: (a) a mean Earth surface temperature of +17 C, (b) a post-industrial warming due only to CO2 increase of δT = 0.4 C, (c) a temperature increase from doubling the present CO2 concentration alone (to 780 ppmv CO2; without water vapour feedback) equal to δT = 1.4 C, and (d) surface temperature response sensitivities that are approximately two orders of magnitude greater for solar irradiance and for planetary shortwave albedo and longwave emissivity than for the atmospheric greenhouse effect from CO2. All the model predictions robustly follow from the straightforward underlying assumptions without any need for elaborate global circulation models. The same longwave optical saturation that provides such a large radiative warming of the planet surface also ensures that the warming effect from increasing CO2 concentration is minimal. I conclude with suggested implications regarding warming alarmism, errors by sceptics, research funding, and scientific ignorance regarding climate feedbacks.

Changes to the June 3, 2011, article: Small clarifications were added and several typos were corrected in the December 3, 2011, pdf version.

Has been download more than 400 times.

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