By Kenneth Richard on 20. October 2022
It 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 W/m² for longwave […]
Posted in Climate Sensitivity, Cloud Climate Influence |
By Kenneth Richard on 25. August 2022
A 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 CO2 to account […]
Posted in Climate Sensitivity, Cloud Climate Influence, CO2 and GHG |
By Kenneth Richard on 22. August 2022
Scientists have once again affirmed the 2000-2020 total greenhouse effect (longwave) forcing has been declining in recent decades just as absorbed solar radiation has been increasing due to cloud albedo modulation. The latter explains the net positive Earth Energy Imbalance (EEI) and consequent global warming during this period. Recently we detailed the satellite-observed decline in […]
Posted in Cloud Climate Influence, CO2 and GHG, Solar Sciences |
By Kenneth Richard on 8. August 2022
Cloud modulation of shortwave radiation and greenhouse effect forcing has largely been the determining factor in the global warming of the last 45 years. Not CO2. CO2 forcing and its effect on surface temperatures is detailed in analyses of changes in clear-sky radiation only because all-sky radiation effects that include clouds (and the real-world atmosphere […]
Posted in Cloud Climate Influence, CO2 and GHG, Natural Variability |
By Kenneth Richard on 27. June 2022
A new study reports there has been a -0.3°C cooling in the Southern Ocean since 1982 per multiple observational data sets. The authors detail the “failure of CMIP5 models in simulating the observed SST cooling in the Southern Ocean.” The Southern Ocean is today about 1-2°C colder than it has been for nearly all of […]
Posted in Cloud Climate Influence, Cooling/Temperature, Models, Oceans |
By Kenneth Richard on 6. June 2022
A 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 water droplets, it […]
Posted in Climate Sensitivity, Cloud Climate Influence |
By Kenneth Richard on 14. April 2022
It takes 10 years and 22 ppm for CO2 to amass just 0.2 W/m² in total surface energy flux. In contrast, short-wave cloud radiative forcing fluctuations vary in amplitude by ±300 W/m² within hours. Earth’s surface energy imbalance is said to have been positive, +0.6 W/m², during the first decade of this century (Stephens et […]
Posted in Cloud Climate Influence, CO2 and GHG |
By Kenneth Richard on 14. February 2022
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 […]
Posted in Alarmism, Antarctic, Arctic, Climate Sensitivity, Cloud Climate Influence, CO2 and GHG, Cooling/Temperature, Coral Reefs, Drought and Deserts, Fire, Flood, Glaciers, Hockey Team, Medieval Warm Period, Models, Natural Oceanic Oscillations, Natural Variability, Paleo-climatology, Sea Ice, Sea Levels, Temperature Bias/Urbanization, Warming/CO2 Benefiting Earth |
By Kenneth Richard on 3. February 2022
“Clouds may be the most important parameter controlling the radiation budget, and, hence the Earth climate.” – Sfîcă et al., 2021 It has become more and more common for scientists to attribute modern radiation budget (climate) changes to variations in cloud cover. This should not be surprising. It’s been pointed out (van Heerwaarden et al., […]
Posted in Cloud Climate Influence |
By Kenneth Richard on 2. December 2021
For decades Great Barrier Reef (GBR) warming and coral bleaching have often been assumed to be driven by human greenhouse gas emissions and/or El Niño events. But a new study finds a much larger and more robust correlation between natural cloud cover modulation of solar radiation, shallow-water warming, and bleaching. It has taken over 260 […]
Posted in Cloud Climate Influence, Coral Reefs |
By Kenneth Richard on 4. November 2021
Scientists publishing in GRL once again affirm that in recent decades the dominant mechanism driving surface melt for the Greenland ice sheet has been downwelling shortwave radiation modulated by clearer skies (fewer clouds) and natural wind pattern changes. Greenland’s ice melt has not been driven by “longwave heating” from greenhouse gases in the last decades […]
Posted in Cloud Climate Influence, Solar Sciences |
By Kenneth Richard on 25. October 2021
Scientists continue to affirm the critical role of clouds in modulating the Earth’s energy budget, and, hence, the climate. The total net forcing of the entirety of the CO2 influence on climate has been less than 2 W/m² since 1750 (Feldman et al., 2015). Image Source: Feldman et al., 2015 On a per-decade basis, a 22 […]
Posted in Cloud Climate Influence, Solar Sciences |
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