Why Haven’t the Tropics Warmed Much? A Tantalizing Piece of Evidence

From Dr. Roy Spencer’s Blog September 28th, 2019 by Roy W. Spencer, Ph. D. The radiative resistance to global temperature change is what limits the temperature change in response to radiative forcing from (say) increasing CO2, or the sun suddenly deciding to pump out a 1 percent more sunlight. If the climate system sheds only…

Advertisements

An Analysis of the Earth’s Energy Budget

Guest post by Philip Mulholland 1. Introduction. The following two figures, showing the principal features of the Earth’s Energy Budget, were published in 1997 by the Oklahoma Climatological Survey (OK-First) and are reproduced here with kind permission. Both of these diagrams when combined provide detailed energy budget information for the Earth’s climate; however, their parameters…

Climate Models are NOT Simulating Earth’s Climate – Part 4

Guest Post by Bob Tisdale Alternate Title: Climate Models Undermine the Hypothesis of Human-Induced Global Warming According to the hypothesis of human-induced global warming, manmade greenhouse gases create an energy imbalance at the top of the Earth’s atmosphere, which causes the Earth to retain heat. One of the hypothetical results of that retained heat is…

Marginal Parasitic Loss Rates

Guest Post by Willis Eschenbach There is a more global restatement of Murphy’s Law which says “Nature always sides with the hidden flaw”. Parasitic losses are an example of that law at work. In any heat engine, either natural or manmade, there are what are called “parasitic losses”. These are losses that tend to reduce…

Three Clocks

Guest Post by Willis Eschenbach I got to wandering through the three main datasets that make up the overall CERES data, and I noticed an odd thing. The three main datasets are the all-sky downwelling solar, upwelling reflected solar, and upwelling longwave radiation, measured in watts per square metre (W/m2). Here are those three datasets:…

Upwelling Solar, Upwelling Longwave

Guest Post by Willis Eschenbach The CERES dataset contains three main parts—downwelling solar radiation, upwelling solar radiation, and upwelling longwave radiation. With the exception of leap-year variations, the solar dataset does not change from year to year over a few decades at least. It is fixed by unchanging physical laws. The upwelling longwave radiation and…

Cancelling the Tropical Cancellation

Guest Post by Willis Eschenbach There’s a much-cited paper (129 citations) from 1994 called “On the Observed Near Cancellation between Longwave and Shortwave Cloud Forcing in Tropical Regions” by J. T. Kiehl (hereinafter Kiehl1994), available here. The paper makes the following claim (emphasis mine): ABSTRACT Observations based on Earth Radiation Budget Experiment (ERBE) satellite data indicate that…