Climate Sensitivity

A Glaring Inconsistency In The Claimed Forcing Values Driving Past Versus Present Climate

A Glaring Inconsistency In The Claimed Forcing Values Driving Past Versus Present Climate

Share this… Facebook TwitterIt is claimed that an additional 60-75 W/m² of absorbed solar radiation can only produce a climate warming of 4-5°C. Doubling CO2 since pre-industrial times (280 to 560 ppm) is said to result in an additional 3.7 W/m² increase in radiative forcing. However, it is inconsistently claimed this ~20 times smaller value […]

Error, Uncertainty In Calculating Natural Climate Forcing Is 24 - 80 Times Larger Than CO2 Forcing

Error, Uncertainty In Calculating Natural Climate Forcing Is 24 – 80 Times Larger Than CO2 Forcing

Share this… Facebook TwitterIf the error and uncertainty associated with determining the extent to which natural factors (aerosol forcing, downwelling shortwave variability) affect climate are factors of ten times larger than the presumed effects of human activity, then we cannot definitively say human activity is driving climate change. It takes 10 years and 22 ppm […]

New Study: Observational Data Affirm 95% Of Post-1970s Warming Is Not Linked To CO2 Increases

New Study: Observational Data Affirm 95% Of Post-1970s Warming Is Not Linked To CO2 Increases

Share this… Facebook TwitterOf the warming trends in Poland and greater Europe, “only about 4–5% are explained by an increase in CO2 concentration.”  –  Marsz et al., 2022  Internal changes to the thermal structure of the ocean transmit decadal-scale changes in the atmospheric circulation and consequent surface air temperature via its modulating impact on the […]

Study Finds The CO2 Greenhouse Effect Is Real...But Dangerous Global Warming From Rising CO2 Is Not

Study Finds The CO2 Greenhouse Effect Is Real…But Dangerous Global Warming From Rising CO2 Is Not

Share this… Facebook TwitterGerman physicists claim to have experimentally demonstrated the greenhouse effect from greenhouse gases like CO2 and CH4 is a real phenomenon, but assess the climate sensitivity to a doubling of CO2 with feedbacks is “only ECS = 0.7°C … 5.4x lower than the mean value of CMIP6 with ECS = 3.78°C.” “The […]

Detection Of A CO2 Climate Signal In Radiative Forcing Is Again Foiled By Clouds

Detection Of A CO2 Climate Signal In Radiative Forcing Is Again Foiled By Clouds

Share this… Facebook TwitterIt so difficult to constrain errors in identifying the cloud impact on Earth’s radiation budget that the orders-of-magnitude smaller radiative impact of CO2 cannot be distinguished from noise. According to a new study using CERES data, the observed biases in detecting the radiative effects of clouds on climate are 2.5 to 6.25 […]

New Study Claims The CO2 Increase Since 1850 Can Account For Only Half Of Modern Global Warming

New Study Claims The CO2 Increase Since 1850 Can Account For Only Half Of Modern Global Warming

Share this… Facebook Twitter“The cause of global warming is still under debate.” – Choi and Manousiouthakis, 2022 Radiative models estimating the temperature effects of increasing CO2 to 420 ppm indicate 0.64°C of the alleged 1.2°C warming since the 19th century could be explained by CO2 increases. Image Source: Choi and Manousiouthakis, 2022 A 2013 study […]

Scientists: Only 10% Of The 1984-2017 Greenhouse Gas (Longwave) Forcing Was From CO2

Scientists: Only 10% Of The 1984-2017 Greenhouse Gas (Longwave) Forcing Was From CO2

Share this… Facebook TwitterA late 2021 study finds water vapor and temperature changes accounted for 90% of the changes in clear-sky downwelling longwave or greenhouse effect forcing since the mid-1980s. CO2 forcing assumed a mere bit-player role. The seminal Feldman et al. (2015) study concluded it takes 10 years and a 22 ppm increase in […]

New Study Affirms Temperatures Determine Greenhouse Gas Forcing Trends, Not The Other Way Around

New Study Affirms Temperatures Determine Greenhouse Gas Forcing Trends, Not The Other Way Around

Share this… Facebook TwitterCO2 and water vapor greenhouse effect impacts are not independent climate forcings . A new study affirms the “variance in the radiance in these channels is primarily controlled by…temperature” and “atmospheric absorption is strongly saturated in these [CO2, water vapor] channels”. It has previously been established that greenhouse gas (water vapor, CO2) […]

Glaring Inconsistency In Estimating CO2 vs. Solar Forcing Suggests CO2 Impacts Are Wildly Exaggerated

Glaring Inconsistency In Estimating CO2 vs. Solar Forcing Suggests CO2 Impacts Are Wildly Exaggerated

Share this… Facebook TwitterFrom about 11,000 to 9,000 years ago the summer solar irradiance absorbed by the Earth’s surface has been estimated to be 40-60 W/m² greater than today from latitudes 40°N to 70°N (Ullman et al., 2015). These values seriously undermine the claim CO2 is the driver of climate change. Image Source: Ullman et […]

German Physicist: Human CO2 Emissions Responsible For 0.05°C Of The Global Warming Since 1750

German Physicist: Human CO2 Emissions Responsible For 0.05°C Of The Global Warming Since 1750

Share this… Facebook TwitterProfessor Herman Harde, an environmental physicist, has authored a new position paper on the follies of assuming humans significantly impact the climate. As detailed in his 2017 paper, Dr. Harde concludes the “anthropogenic contribution to the actual CO2 concentration is found to be 4.3% [a figure derived from IPCC AR5], its fraction […]

Alarmists: Clouds May 'Disappear Forever' With Warming. Observations: Clouds Increase As It Warms.

Alarmists: Clouds May ‘Disappear Forever’ With Warming. Observations: Clouds Increase As It Warms.

Share this… Facebook TwitterA new study finds the modeling-based claim that cloud cover changes are only responding to anthropogenic CO2 forcing as a feedback – and not functioning independently as a forcing – has (again) been contradicted by observations. Since this is a water planet, and since clouds are formed when water vapor turns into […]

The Evidence Keeps Piling Up: Iceland Is Not Cooperating With The ‘Global Warming’ Agenda

Share this… Facebook TwitterIf decadal- and century-scale glacier advance and retreat is strongly indicative of a region’s climate, glacier behavior in Iceland saps the narrative that says anthropogenic CO2 is a climate driver. Per a new study, many of the northern Icelandic glaciers in existence today had “disappeared” from about 10,000 to 6,000 years ago. […]

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