By Joe Born 1. Introduction By presenting actual calculation results from a specific feedback-system example, the plots below will put some graphical meat on the verbal bones of Nick Stokes’ recent “Demystifying Feedback” post. I heartily agree with the main message I took from Mr. Stokes’ post: although some climate equations may be similar to…
Guest post by KEVIN KILTY Introduction In a post on June 8, 2019, Willis Eschenbach showed an interesting plot of monthly average surface temperature against total irradiance absorbed at the ground surface. He has updated this original post. His original figure is at the top of this post. He made no hypothesis about the meaning…
Guest post by Kevin Kilty Introduction Within the past week or two we have read posts from Dr. Spencer (6/7/2019), Nick Stokes (6/6/2019), Lord Monckton (6/8/2019), and Willis Eschenbach (6/8/2019) covering a variety of topics involving simple block models; and each one involving, in one way or another, climate feedback. I have had a few…
?????????????????????????~ctm Researchers account for feedback between climate change and human behavior PLOS A new climate modeling approach suggests that social processes strongly affect global warming predictions, and mitigation efforts should account for this influence. Thomas Bury of the Universities of Waterloo and Guelph, Canada, and colleagues present these findings in PLOS Computational Biology. Human behavior…
Guest Post by Philip Mulholland “Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.” Richard P. Feynman. 1. Introduction: The Science of Climate. A planetary climate consists of a dynamic mobile-fluid mass-transport and energy delivery system, organised in the form of closed loops or cells, that advects mass…
Institute for Basic Science A new study, published this week in the journal Nature Climate Change, shows that the recent intensification of the equatorial Pacific wind system, known as Walker Circulation, is unrelated to human influences and can be explained by natural processes. This result ends a long-standing debate on the drivers of an unprecedented…
Guest Essay by Kip Hansen Welcome to Model-Land, ladies and gentlemen, boys and girls! “Model-land is a hypothetical world in which our simulations are perfect, an attractive fairy-tale state of mind in which optimizing a simulation invariably reflects desirable pathways in the real world.” Here in Model-Land you’ll see fabulous “computational simulations and associated…
A Guest Post By Bob Tisdale In this post, we’re going to illustrate how poorly climate models used by the IPCC for their 5th Assessment Report simulate the polar amplification that data indicate took place during the early 20th Century warming period of 1916 to 1945.
What can’t you show with models?~ctm From EurekAlert! University of Bern Tropical deforestation is a major contributor to climate change and loss of local and global ecosystem functions. Latin America accounts for a large share of remaining tropical forests, but also features deforestation rates well above the world average. Here, the biggest driver of deforestation…
Guest Post by Willis Eschenbach. I came across an interesting 2014 paper called “The energy balance over land and oceans: an assessment based on direct observations and CMIP5 climate models“. In it, they make a number of comparisons between observational data and 43 climate models regarding the large-scale energy flows of the planet. Here’s a typical…