Climate Sensitivity

2020 Review: Observational And Modeling Studies Show Temperature Falls As CO2 Rises

2020 Review: Observational And Modeling Studies Show Temperature Falls As CO2 Rises

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Share this…FacebookTwitterA 2020 observational study (Zhang et al., 2020) determined “temperatures of atmospheric air with substantially higher CO2 concentration (ranging from 3200 ppm to 16,900 ppm) were lower than that with the lower CO2 concentration (480 ppm)” and a 2020 modeling study (Drotos et al., 2020) assessed that when CO2 goes beyond 4 times preindustrial […]

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Real-World Outdoor Experiment: As CO2 Naturally Rises From 0.1% To 75%, Surface Temperatures Drop 10°C

Real-World Outdoor Experiment: As CO2 Naturally Rises From 0.1% To 75%, Surface Temperatures Drop 10°C

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Share this…FacebookTwitterAt an outdoor test site in Italy CO2 concentrations vacillating between 1,000 and 750,000 ppm have no more or less an effect on local temperatures than a nearby site with stable, ambient (<400 ppm) CO2 concentrations. Mofette fields are “natural carbon dioxide springs” that allow us to observe the effect that a 100% (1,000,000 […]

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A New Experiment Finds Just A 1.3°C Temperature Differential For Contained Air With 0.05% Versus 100% CO2

A New Experiment Finds Just A 1.3°C Temperature Differential For Contained Air With 0.05% Versus 100% CO2

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Share this…FacebookTwitterA new balloon experiment (inadvertently) demonstrates just how weak and inconsequential CO2’s warming effect is. Levendis et al. (2020) tried using an experiment with air-filled (99% nitrogen and oxygen) versus CO2-filled (100% CO2) balloons to demonstrate a consequential warming effect for CO2. But their study may have demonstrated the opposite. In the experiment a […]

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Another New Study Determines Sea Surface Temperatures Were 1-5°C Warmer Than Now During The Last ICE AGE

Another New Study Determines Sea Surface Temperatures Were 1-5°C Warmer Than Now During The Last ICE AGE

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Share this…FacebookTwitterScientists report they must “exclude atmospheric pCO2 as a direct driver of SST variations” after finding the Atlantic Ocean’s surface was multiple degrees warmer than today from 90 to 20 thousand years ago, or when CO2 concentrations hovered below 200 ppm.  Another new study (Hou et al., 2020) casts even more doubt on the […]

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Model Failure: 'All Model Runs Warmed Faster Than Observations' ... CO2 Sensitivity Estimates 'Unrealistically High'

Model Failure: ‘All Model Runs Warmed Faster Than Observations’ … CO2 Sensitivity Estimates ‘Unrealistically High’

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Share this…FacebookTwitterScientists continue to document severe discrepancies between climate modeling and observations in newly published scientific papers. 1. Models run too hot and yield “unrealistically high” estimates of the climate’s sensitivity to CO2 forcing. McKitrick and Christy, 2020 “All model runs warmed faster than observations in the lower troposphere and midtroposphere, in the tropics, and […]

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MetOffice, IPCC Climate Scientist Prof. Richard Betts Misunderstood Science Behind Drying Forests

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Share this…FacebookTwitterJust recently Anthony Watts posted an article on wildfires penned by Paul Homewood. Lately alarmists have been blaming the active forest fire season on global warming. They warn that warmer temperatures will lead to more wildfires. Is it so? First it’s important to note that warmer temperatures don’t necessarily lead to more drought and […]

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New Study Finds Weak CO2-Induced Warming An 'Implausible' Explanation For The End-Triassic Mass Extinction

New Study Finds Weak CO2-Induced Warming An ‘Implausible’ Explanation For The End-Triassic Mass Extinction

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Share this…FacebookTwitterEvidence that temperature swings of ±17°C occurred during the end-Triassic mass extinction event imply that CO2 would have needed to increase 8- to 1,024-fold (3 to 10 doublings) to have induced that magnitude of temperature change. It didn’t. Evidence from a new study (Petryshyn et al., 2020) suggests “repeated” temperature swings of 16-17°C occurred […]

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Max Planck Institute For Meteorology Director Not Worried About Climate Tipping Points...Worried About Panic

Max Planck Institute For Meteorology Director Not Worried About Climate Tipping Points…Worried About Panic

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Share this…FacebookTwitterIn an interview with flagship daily Frankfurter Allgemeine Zeitung (FAZ here), Max-Planck Institute for Meteorology (MPIM) Director Dr. Jochen Marotzke said predicting how many degrees of warming we need to prepare for was like reading tea leaves and that he is not worried about “climate tipping points”.  He also spoke of the wide disagreement […]

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No Need To Panic: Leading Scientists See Little Global Warming In The Works - Due To "Natural Variability"

No Need To Panic: Leading Scientists See Little Global Warming In The Works – Due To “Natural Variability”

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Share this…FacebookTwitterA commentary titled “‘Just don’t panic – also about climate change’” by Prof. Fritz Vahrenholt appearing at German site achgut.com tells us there’s no need for panic with respect to climate change, as leading scientists dial back earlier doomsday projections. Prof. Fritz Vahrenholt. Image: GWPF No warming until 2050 Vahrenholt claims a negative Atlantic […]

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MIT's Dr. Lindzen Pokes Fun At The 'Naïve', Well-Funded 'Scientific Reasoning' That 1 Factor - CO2 - Controls Climate

MIT’s Dr. Lindzen Pokes Fun At The ‘Naïve’, Well-Funded ‘Scientific Reasoning’ That 1 Factor – CO2 – Controls Climate

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Share this…FacebookTwitterIn a new paper, atmospheric physicist Dr. Richard Lindzen summarizes the “implausible” claims today’s proponents of dangerous anthropogenic global warming espouse. Dr. Richard Lindzen retired several years ago, and yet his immense contribution to the atmospheric sciences lives on. His research is still cited about 600 times per year. Lindzen recently published another scientific […]

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Scientists Find A CO2 Impact On Ocean Heat Content Changes Amounts To 0.049% At Most

Scientists Find A CO2 Impact On Ocean Heat Content Changes Amounts To 0.049% At Most

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Share this…FacebookTwitter The radiative impact of CO2 on the ocean’s thermal skin layer cannot penetrate deeper than 0.01 mm. This effectively eliminates the potential for CO2 to be a driver of global warming. According to mainstream anthropogenic global warming (AGW) science, 93% of global warming is manifested in the 0-2000 m oceans. Just 1% of global […]

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Uncertainty In Natural Climate Forcing Is 870 Times Larger Than CO2 Forcing - A CO2 Signal Is Thus Not Detectable

Uncertainty In Natural Climate Forcing Is 870 Times Larger Than CO2 Forcing – A CO2 Signal Is Thus Not Detectable

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Share this…FacebookTwitterClouds regulate Earth’s climate. New studies suggest uncertainty in clouds’ surface radiative effects reach 17.4 W/m² per year (±8.7 W/m²/year). Total CO2 climate forcing is said to be just 0.02 W/m² per year. The difference in these magnitudes preclude detection of a CO2 signal in climate forcing. According to Feldman et al. (2015), a […]

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