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By Kenneth Richard on 27. November 2023
Variations in the greenhouse effect are predominantly modulated by water vapor and cloud cover. CO2’s role in the greenhouse effect is so minor it cannot be discerned. For decades scientists have reported that a CO2 concentration of about 300 ppm can only increase the downwelling longwave radiation (DLWR), or greenhouse effect, by about 1.5 W/m² […]
Posted in Climate Sensitivity, CO2 and GHG |
By Kenneth Richard on 23. November 2023
Analysis of CO2 residence times suggest 65% to 96.5% of the CO2 concentration increase since 1958 is natural. According to a new study, the claim that increases in atmospheric CO2 are driven exclusively by humans relies on a made-up, disparate accounting model, with the residence time for natural emissions 3 to 4 years (which is […]
Posted in CO2 and GHG, Natural Variability |
By Kenneth Richard on 20. November 2023
Millennial-scale Arctic sea ice reconstructions do not corroborate alarmist claims of unprecedented sea ice losses in modern times. Using sea ice biomarker proxy (IP25), scientists (Kolling et al., 2023) have determined that the sea ice extent in the Labrador Sea was nearly absent throughout the year (close to 0.0 μg/gTOC) for much of the last […]
Posted in Arctic, Paleo-climatology, Sea Ice |
By Kenneth Richard on 16. November 2023
The timing of the dramatic Antarctic sea ice decline during the last deglaciation suggests solar forcing and sea ice retreat “instigated” century-scale climate warming and atmospheric CO2 change. This would appear to challenge the perception CO2 plays a causal role in glacial-interglacial sea ice and climate changes. From ~21,000 to 19,500 years ago, when CO2 […]
Posted in Antarctic, Paleo-climatology, Sea Ice |
By Kenneth Richard on 13. November 2023
Yet another region of the world fails to cooperate with “global” warming instructions. New research (Zhang et al., 2023) finds the sea ice extent has undergone an overall increasing trend from 2005-2021 in the Sea of Japan, Yellow Sea, and Bohai Sea. “Over the past 17 years, the maximum sea ice extent in the marginal […]
Posted in Cooling/Temperature, Paleo-climatology, Sea Ice |
By Kenneth Richard on 9. November 2023
IPCC models rooted in assumptions that we humans can and do control the Atlantic Ocean’s circulation with our daily-activity CO2 emissions have been wrong since the mid-1980s. Why should we still believe in them? The latest IPCC report continues to say it is “very likely” the Atlantic Meridional Ocean Circulation (AMOC), a fundamental climate parameter, […]
Posted in Models, Natural Oceanic Oscillations, Oceans |
By Kenneth Richard on 6. November 2023
Significant 21st century cooling in the Central Pacific, Eastern Pacific, and nearly all of Antarctica “implies substantial uncertainties in future temperature projections of CMIP6 models.” – Zhang et al., 2023 New research indicates West Antarctica’s mean annual surface temperatures cooled by more than -1.8°C (-0.93°C per decade) from 1999-2018. In spring, the West Antarctic Ice […]
Posted in Antarctic, Cooling/Temperature |
By Kenneth Richard on 2. November 2023
“We would expect from a 100% switchover from fossil fuels to zero-emission renewables…net radiative heating would increase drastically.” – Nair et al., 2023 Using observational data gleaned from COVID-19 lockdowns in South Asia, scientists publishing in a Nature journal (Nair et al., 2023) have now determined the ongoing switch to zero greenhouse gas (GHG) emissions […]
Posted in CO2 and GHG, Pandemic, Pollution |
By Kenneth Richard on 30. October 2023
“Despite two decades of advances in many aspects of aerosol-climate science, aerosol climate forcing uncertainty is virtually undiminished. Yet, reducing this uncertainty is critical for any effort to attribute, mitigate, or predict climate changes.” – Kahn et al., 2023 According to a new study, the lower-bound uncertainty in natural aerosol forcing from wildfire smoke, desert […]
Posted in Models, Uncertainty Error
By Kenneth Richard on 26. October 2023
Paleoclimate studies continue to undermine claims of “unprecedented” global warming in the modern era. A new temperature reconstruction (Oliveira Silva Muraja et al., 2023) for Brazil reveals there has been no net modern warming since the 1400s. Image Source: Oliveira Silva Muraja et al., 2023 Another new temperature reconstruction (Yue et al., 2023) indicates there […]
Posted in Paleo-climatology
By Kenneth Richard on 19. October 2023
There are many scientifically invalid assumptions in the “greenhouse gas hypothesis” that the editors of a journal, Earth System Dynamics (ESD), now insist they will never again allow to be subjected to critical analysis in future publications, as the editors of this journal are committed to only publishing studies agreeing with the “consensus.” In a […]
Posted in CO2 and GHG, Uncertainty Error |
By Kenneth Richard on 17. October 2023
Per a new study, atmospheric CO2 levels rose to 383 ppm in the 1940s mostly as a consequence of soil respiration processes and sea surface temperature warming. Any anthropogenic contribution to this CO2 peak “can be largely excluded.” When assessing the historical atmospheric CO2 concentration, direct measurements of chemically analyzed air samples are at least […]
Posted in Climate Sensitivity, CO2 and GHG |
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