future

What did ExxonMobil Know and When Did They Know it? (Part Quatre: “Is ExxonMobil Actually Only Worth A Fraction Of What It Says?”)

Guest post by David Middleton In my previous posts regarding the lawless inquisition of ExxonMobil and its supposed climate cover-up, I’ve pretty well demonstrated that ExxonMobil (then Humble Oil, later Exxon) knew exactly what we know today: The AGW models always forecast about 4 times as much warming as actually would occur.  In any science other…

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The Illusions Provided by Time-Series Graphs of Climate Model Ensembles and Model Spreads

Guest Post by Bob Tisdale The post Controversy over comparing models with observations at Judith Curry’s Climate Etc. prompted this post.  Judith’s post includes a Twitter exchange and a couple of model-data comparison graphs furnished by Dr. Gavin Schmidt, the director of the Goddard Institute of Space Studies.  The one from Gavin for the global mid-troposphere…

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RCP 8.5: The “Mother of all” Junk Climate Science

Guest post by David Middleton Featured image borrowed from here. Nearly every catastrophic global warming doomsday scenario, particularity those involving icecap failures and Noah-size sea level rises are based on the “RCP 8.5” scenario.   Representative Concentration (or Carbon)Pathway 8.5 assumes a “rising radiative forcing pathway leading to 8.5 W/m² in 2100.”  It is generally…

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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…