Cruces Atmospheric Sciences Forum – In science, the debate is never over!
Tag: global climate model
(def. Wikipedia) A general circulation model (GCM) is a type of climate model. It employs a mathematical model of the general circulation of a planetary atmosphere or ocean. It uses the Navier–Stokes equations on a rotating sphere with thermodynamic terms for various energy sources (radiation, latent heat).
Unfortunately, climate models have never produced a correct projection of global temperatures. This is due to a number of problems with the models. Global cloud cover has a big effect on global temperatures, but cloud cover is poorly understood and not modeled correctly. Modelers assume a strong feedback from the presence of carbon dioxide, but many experts say that the feedback is weak or even negative. Without feedback, carbon dioxide has a very small effect on global warming. These climate models use non-linear, partial differential equations which by their very nature cannot be solved.
Climate change policy decisions by our government are based on the output from these models that have always been wrong. These policies have extremely expensive ramifications. Most people would consider basing expensive policy on bad model output to be complete lunacy, if they were aware of it.
[This post by Jennifer Marohasy originally appeared on her blog site on 20 July 2022. It is reproduced here under the fair use doctrine. Ed]
There was a time when it was possible to point out an error by way of a rebuttal published as a note in a scientific journal – even in the journal Nature, even when it went against the catastrophic anthropogenic global warming agenda. The late Patrick Michaels had a note published back in 1996 (vol. 384, pg. 522) explaining that there was a major error in research findings by Ben Santer – findings so significant they underpinned the key claim in the second IPCC report that ‘The balance of evidence suggests a discernible human influence on global climate.’
The notion that the USA can cut in half its CO2 emissions from the peak emissions that occurred here in 2005 is fantasy.
President Joe Biden held a virtual climate summit on the fifty-first anniversary of the first Earth Day, originally held 22 April 1970. When confronted with facts, measurements, observations, and data concerning climate history, Biden’s climate plan is based on trying to prevent temperature increases which have occurred naturally many times in the recent past. This post will explore some of the most ill-informed and ignorant statements, plans, and actions, which all together will have no measurable impact on the climate, and will only cause economic harm to us, Earth’s human residents.
Burnett: You coauthored a book titled Lukewarming: The New Climate Science that Changes Everything. What is the thesis of the book?
Michaels: Global warming is often presented as one of two alternative visions: left unattended, it will bring about an unmitigated disaster with tremendous consequences to humanity and the planet; or there is really “no such thing”—meaning little to no warming and little to no influence of human greenhouse-gas emissions on climate.
[This interview was originally published by the Heartland Institute on December 5th, 2019. It is being printed here with the permission of Dr. H. Sterling Burnett from the Heartland Institute.]
A newly published paper, titled “Evaluating the Performance of Past Climate Model Projections,” mistakenly claims climate models have been remarkably accurate predicting future temperatures. The paper is receiving substantial media attention, but we urge caution before blindly accepting the paper’s assertions.
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.””