Climate Sensitivity

Lab Experiment Shows A 2500-Fold CO2 Increase Delivers Surface Cooling, Not Warming

Lab Experiment Shows A 2500-Fold CO2 Increase Delivers Surface Cooling, Not Warming

“In a modified experiment, where IR emission from the heating source is present, no heating but a slight cooling of a black object is found when air is replaced by CO2. The modified experimental situation is also more like the earth/atmosphere situation.”  – Seim and Olsen, 2023 Scientists Hermann Harde and Michael Schnell published a […]

Physicist: Physics Laws 'Neglected' In Climate Models...Doubled CO2 Leads To 0.6°C Warming

Physicist: Physics Laws ‘Neglected’ In Climate Models…Doubled CO2 Leads To 0.6°C Warming

“Climatological models…pretend on a long-term description of the atmosphere…ignoring physical laws in climatology.” – Smirnov, 2022 “[T]he Kirchoff law is neglected in climatological models. This leads to a large mistake in prediction of the global temperature change.” “[D]oubling the concentration of atmospheric CO2 molecules leads to the following change of the global temperature T = […]

Climate Expert: Climate Change Is Not To Blame For Everything

Politicians have gotten in the bad habit of blaming everything on climate change “to shift responsibility away from themselves”. Expert: Climate change is not to blame for everything Hat-tip: Klimanachrichten here We have to wonder what attacks Friederike Otto will face from the social media. The climate attribution researcher is quoted in an article at […]

New Study: Neither Global Warming Or CO2 Radiative Forcing Were A Cause Of Past Mass Extinctions

New Study: Neither Global Warming Or CO2 Radiative Forcing Were A Cause Of Past Mass Extinctions

Over the last 210 million years [Myr], (a) CO2 falls as temperatures rise (negative correlation, r = -0.76), (b) mass extinctions occur 4.08 Myr after CO2 peaks, and (c) global warming/CO2 radiative forcing “did not cause extinction of biodiversity.” A new study has been published in Earth’s Future journal that supplements a 2017 analysis of […]

Scientists: Cosmic Ray-Cloud Connection Explains Million-Year Climate Changes Far Better Than CO2

Scientists: Cosmic Ray-Cloud Connection Explains Million-Year Climate Changes Far Better Than CO2

Per a new study, million-year variations in cosmic rays (CR) modulating cloud cover, which, in turn, drives variations in incident solar radiation on short- and long-term timescales, is the dominant cause of million-year climate variations, explaining all 7 Ice Age epochs over the Phanerozoic. In contrast, declining CO2 and rising solar luminosity over the last […]

Europe's Climate Suffers From Lack Of Clouds And Rain...Not From A CO2 Increase

Europe’s Climate Suffers From Lack Of Clouds And Rain…Not From A CO2 Increase

The higher temperatures are clearly attributable to a reduction in cloud cover, not CO2 The DIY way to demystify “greenhouse gas” claims Rapidly rising temperatures and drought in parts of central Europe are caused by a long-term trend of receding cloud cover. Fewer clouds result in increased solar energy influx and reduced downpour. Both factors […]

New Study: 90% Of Recent Warming Is From Shortwave Cloud Forcing...Humans Contributed 0.03°C

New Study: 90% Of Recent Warming Is From Shortwave Cloud Forcing…Humans Contributed 0.03°C

Data analysis again reveals the increase in absorbed shortwave forcing has been driving modern climate change since the 1970s. CO2 changes are more of an effect than a cause of temperature increases. Scientists have for years been pointing to the causality sequencing problem inherent in the claim that CO2 is the driver of temperature changes. […]

Another Day, Another CO2-Is-A-Climate-Driver Inconsistency

Another Day, Another CO2-Is-A-Climate-Driver Inconsistency

The global mean surface temperature (GMST) effects of a 1 W/m² radiative forcing, or positive/negative energy imbalance, has been obtained from the observations from the 1991 Mt. Pinatubo eruption. CO2’s climate effects are claimed to be many times larger than observations indicate. The observed climate sensitivity (CS) to a perturbation to Earth’s Energy Imbalance (EEI) […]

Earth's Greenhouse Effect Has Not Been Enhanced, But Instead Its Impact Has Declined Since 1983

Earth’s Greenhouse Effect Has Not Been Enhanced, But Instead Its Impact Has Declined Since 1983

In the satellite era scientists have continued to observe the Earth’s total greenhouse effect (which includes effects from greenhouse gases and clouds) exerting an overall negative impact (cooling) on surface temperatures since the 1980s. This rules out both CO2 and an enhanced greenhouse effect as drivers of global warming. Earth’s total greenhouse effect impact on […]

Real-World Observation: Increasing CO2 By 7,000 ppm Has A 0.3°C Temperature Differential

Real-World Observation: Increasing CO2 By 7,000 ppm Has A 0.3°C Temperature Differential

Surface air CO2 concentrations vary by 100s to 1,000s of ppm within a span of hours to days or weeks across the natural world. The observational evidence suggests these variations are neither driving or even causing temperature changes. According to recent field research (Mungai, 2021) conducted in Kenya, the observed CO2 concentrations in the atmospheric […]

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

It 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 will also lead […]

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

If 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 for CO2 forcing […]

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