Climate Sensitivity

Atmospheric Physicist: CO2 Explains 0.1°C Of 1975-2000 Warming - 'One Fifth Of The IPCC Assumption'

Atmospheric Physicist: CO2 Explains 0.1°C Of 1975-2000 Warming – ‘One Fifth Of The IPCC Assumption’

A new study uses existing temperature and CO2 records and albedo/natural variability attribution to suggest most of the recent warming is natural. The climate sensitivity to CO2 forcing is just over 0.2°C for a 100 ppm concentration increase. Dr. Syun-Ichi Akasofu is an “expert in aurora physics, solar physics, geophysics, and magnetosphere” and the founder […]

New Study: The CO2-Drives-Global-Warming 'Concept' Is 'Obsolete And Incorrect'

New Study: The CO2-Drives-Global-Warming ‘Concept’ Is ‘Obsolete And Incorrect’

“The IPCC concept that increasing carbon dioxide in the atmosphere causes global warming is three decades out-of-date.”  − Lightfoot and Ratzer (2022), Journal of Basic & Applied Sciences In analyzing UAH global temperature and Mauna Loa CO2 records from 1979 to 2021, climate researchers Lightfoot and Ratzer (2022) report there has been “little, if any” […]

Hundreds More Papers Published In 2021 Support A Skeptical Position On Climate Alarm

In 2021, several hundred more scientific papers were published that cast doubt on the position that anthropogenic CO2 emissions function as the climate’s fundamental control knob…or that otherwise serve to question the efficacy of climate models or the related “consensus” positions commonly endorsed by policymakers and mainstream media sources. These scientific papers affirm the position […]

Nearly 140 Scientific Papers Detail The Minuscule Effect CO2 Has On Earth's Temperature

Nearly 140 Scientific Papers Detail The Minuscule Effect CO2 Has On Earth’s Temperature

We have updated our “Extremely Low CO2 Climate Sensitivity” scientific paper list with new papers added from 2021 and some newly discovered papers from the past. As of 2016 this list had only 50 papers on it (as indicated by the web address). In less than 6 years the list has grown to 137 (as […]

2 More Studies: The Climate's CO2 Sensitivity Is Low...Models Erroneously Overestimate CO2 Warming

2 More Studies: The Climate’s CO2 Sensitivity Is Low…Models Erroneously Overestimate CO2 Warming

Astrophysicists conclude climate models are deeply flawed. Doubling CO2 to 560 ppm only elicits about 1°C warming. Dr. Frank Stefani is an astrophysicist who has published several recent papers (Stefani et al., 2016,  Stefani et al., 2017, Stefani et al., 2018, Stefani et al., 2019, Stefani et al., 2020) on the role of solar cycles […]

New Study: Modelers Got Aerosols All Wrong...CO2 Climate Sensitivity Likely Another 0.4°C Overstated!

New Study: Modelers Got Aerosols All Wrong…CO2 Climate Sensitivity Likely Another 0.4°C Overstated!

Die kalte Sonne reports on a new aerosol study by Liu et al. The results are a major blow to the high greenhouse-gas climate sensitivity modelers. IPCC scientists have a favorite wild card they often use to explain serious model discrepancies: aerosols. Mysterious cooling events in the past are often explained away by aerosols from […]

Physicists: Climate Model Error Overestimates CO2 Impact On Global Temps By Factor Of 5

Physicists: Climate Model Error Overestimates CO2 Impact On Global Temps By Factor Of 5

A new study suggests CO2 molecules have little consequential impact affecting outgoing radiation, and that climate models attribute global temperature effects to CO2 that are fundamentally erroneous. Russian physicists (Smirnov and Zhilyaev, 2021) have published a peer-reviewed paper in the Advances in Fundamental Physics Special Issue for the journal Foundations. They assesses the role of […]

Veteran Chemical Engineer: Recent Warming Likely Caused By Relative Humidity Decrease, Not CO2 GHG

Veteran Chemical Engineer: Recent Warming Likely Caused By Relative Humidity Decrease, Not CO2 GHG

Global Warming Driven by Relative Humidity Decrease, Not CO2 GHG! Solution: More Ocean Evaporation By David R. Motes Anthropogenic Global Warming (AGW) is quantitatively driven by a steady relative humidity decrease of 0.13%/year throughout the troposphere since 1970 per the chart below, and not CO2 GHG (Green House Gas).  The resulting evaporation reduction is a […]

New Atmospheric Science Publication Finds Quadrupling CO2 Would Lead To Only 1.0°C Increase!

New Atmospheric Science Publication Finds Quadrupling CO2 Would Lead To Only 1.0°C Increase!

“No climate emergency,” scientists say…”increasing levels of CO2 won’t lead to significant changes in earth temperature” Increases in CH4 and N2O will have very little discernable impact. A new publication in the International Journal of Atmospheric and Oceanic Sciences concludes that CO2 climate sensitivity has been excessively exaggerated by IPCC scientists. A British and two German […]

Mainstream Science Says CO2 Radiatively Cools Most Of The Atmospheres Of Earth, Venus, And Mars

Mainstream Science Says CO2 Radiatively Cools Most Of The Atmospheres Of Earth, Venus, And Mars

For decades it has been widely accepted that rising CO2 is responsible for radiatively cooling the air above the troposphere to space…even where space is warming. It’s considered common knowledge that CO2 molecules radiatively warm the tropospheres (~0-12 km) of planets like Earth, Mars, and Venus (Sharma and Wintersteiner, 1990), but they otherwise radiatively cool […]

Forest Degradation A Major Climatic Warming Driver, Study Finds. CO2-Induced Tree Growth Cools?

Forest Degradation A Major Climatic Warming Driver, Study Finds. CO2-Induced Tree Growth Cools?

A new study published in the journal Ecological Solutions and Evidence shows that forestry management has a significant influence on the cooling capacity of forests. Our cooling forests. Photo: Copyright P. Gosselin  The study shows why burning trees in “sustainable” biomass plants using wood chips imported from around the world and deforestation to make way […]

1970s-'80s 'Physics' Said Doubling CO2 Produced Just 0.2°C - 0.8°C Warming. Then 'Physics' Changed.

1970s-’80s ‘Physics’ Said Doubling CO2 Produced Just 0.2°C – 0.8°C Warming. Then ‘Physics’ Changed.

Forty to 50 years ago there was “general agreement” in estimates of the resulting radiative forcing (1 to 2 W/m²) and surface temperature change (0.5°C ±0.3°C) when directly doubling CO2 concentrations from 280 to 560 ppm. By the late 1980s the “consensus” estimates doubled to 3.7 W/m² forcing and 1.2°C warming instead. Apparently “basic physics” […]

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