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By Kenneth Richard on 9. January 2025
“An increase in low cloud cover of only about 1% could largely compensate for the doubling of CO2.” – van Wijngaarden & Happer, 2025 Ph.D physicists detail just how insignificant CO2 is as a factor in climate change, revealing that doubling the CO2 concentration from 400 ppm to 800 ppm – a 100% increase – […]
Posted in Climate Sensitivity, Cloud Climate Influence, CO2 and GHG |
By Kenneth Richard on 23. December 2024
The 2013-2022 warming trend and the extreme warmth in 2023 were “not associated with” declining outgoing longwave radiation induced by rising greenhouse gases. Instead, a new study published in the journal Science contends that decreasing cloud albedo and the consequent increase in ASR, or absorbed solar radiation (+0.97 to 1.10 W/m²/decade according to ERA5 and […]
Posted in Climate Sensitivity, Cloud Climate Influence, CO2 and GHG, Solar Sciences |
By Kenneth Richard on 7. October 2024
The radiation budget changes shaping trends in global dimming (cooling) and global brightening (warming) are driven by cloud cover changes, which are themselves modulated by internal deep ocean processes. A new study assesses the associated factors in North Atlantic climate variations, noting how critical clouds are in modulating Earth’s Energy Imbalance (EEI). “Cloudiness is the […]
Posted in Cloud Climate Influence, Natural Variability, Oceans |
By Kenneth Richard on 27. September 2024
Per a new study, the last 200 years of global warming are associated with cloud cover decline, and this decreasing cloud albedo can be linked to “the dominant roles of external forces – volcanic, solar, and oceanic – in their mutual influence after the LIA [Little Ice Age].” Scientists have repeatedly reported a satellite-observed (CERES) […]
Posted in Cloud Climate Influence, Natural Oceanic Oscillations, Natural Variability, Solar Sciences |
By Kenneth Richard on 12. September 2024
To claim that anthropogenic CO2 emissions drive global warming, radiative forcing modeling studies must assume 1) clouds do not ever change, 2) cloud albedo is constant, and/or 3) clouds do not exist. None of these are real-world conditions. The real atmosphere is what scientists refer to as all-sky, an atmosphere where clouds not only exist […]
Posted in Climate Sensitivity, Cloud Climate Influence, CO2 and GHG |
By Kenneth Richard on 10. September 2024
“Earth’s energy imbalance has doubled from 0.5 ± 0.2 W/m² during the first 10 years of this century to 1.0 ± 0.2 W/m² during the past decade. The increase is the result of a 0.9 ± 0.3 W/m² increase absorbed solar radiation (ASR)…” − Loeb et al., 2024 Satellite observations from CERES (Clouds and the […]
Posted in Cloud Climate Influence, CO2 and GHG |
By Kenneth Richard on 23. August 2024
“Our analysis revealed that the observed decrease of planetary albedo along with reported variations of the Total Solar Irradiance (TSI) explain 100% of the global warming trend and 83% of the GSAT interannual variability as documented by six satellite- and ground-based monitoring systems over the past 24 years.” – Nikolov and Zeller, 2024 A new, […]
Posted in Climate Sensitivity, Cloud Climate Influence, CO2 and GHG, Solar Sciences |
By Kenneth Richard on 1. July 2024
Scientists attempt to explain why approximately one-third of the global ocean’s sea surface temperatures cooled since the late 1970s. The 50-70°S Southern Ocean and 160°W to 80°W southeastern Pacific cooled by about -0.35°C (-0.117°C per decade) from 1979-2013 (Yao et al., 2024). (The cooling also continued to 2019, but the authors chose to use 2013 […]
Posted in Cloud Climate Influence, Cooling/Temperature, Oceans |
By Kenneth Richard on 24. June 2024
Modeling the main factors driving climate is riddled with and precluded by observational error. Some scientists now acknowledge this. Clouds are a main factor – even the “most important factor” – controlling changes in the Earth’s radiation budget, or climate (Sfîcă et al., 2021, Lenaerts et al., 2020). Image Source: Sfîcă et al., 2021 and […]
Posted in Cloud Climate Influence, Uncertainty Error |
By Kenneth Richard on 29. April 2024
Across Europe there has been a downward trend in cloud and aerosol albedo over the last 40 years, allowing more solar radiation to reach the surface. This “brightening” effect thus explains recent warming. A new study (Wacker et al., 2024) from a “testbed site” in Germany reports total and direct shortwave (SW) radiation forcing rose […]
Posted in Cloud Climate Influence, Solar Sciences |
By Kenneth Richard on 7. September 2023
More and more evidence is emerging that the modern warming trends are naturally driven, not anthropogenic. Per CERES observations the surface incident shortwave (SW) radiation anomaly increased by +1.61 W/m² from 2001 to 2019, and +1.75 W/m² from 2001 to 2021 (Ollila, 2023). This SW increase is likely due to natural variations in cloud cover […]
Posted in Cloud Climate Influence, Natural Variability, Solar Sciences
By Kenneth Richard on 7. August 2023
Changes in cloud cover over Europe and the North Atlantic have been observed to be a significant driver of sunshine duration (SD) changes, and thus climate change, in this region. Changes in cloud cover are “the result of internal variability in the ocean-atmosphere system.” Previously, the non-linear, oscillatory climate variations over Europe had been assumed […]
Posted in Cloud Climate Influence, Natural Variability |
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