By Kenneth Richard on 22. May 2023
In the last 25,000 years there has been an anti-correlation between rising CO2 and the Siberian Arctic temperature – the opposite of what is claimed by proponents of the anthropogenic global warming narrative. According to a new study, Arctic Siberia was 4°C warmer than it is today from 15,000 to 11,000 years ago, when CO2 […]
Posted in Arctic, Paleo-climatology |
By Kenneth Richard on 18. May 2023
“Even the lowest pollen derived Pleistocene MAT [mean annual temperature] estimates are still ∼3.5 to 2.5 °C warmer than the modern KPB MATs [Kunlun Pass Basin] of ∼ −6.1 °C.” – Schwarz et al., 2023 The Kunlun Pass Basin (KPB) in the northeastern Tibetan Plateau is the largest alpine permafrost region on Earth. About 4 […]
Posted in CO2 and GHG, Paleo-climatology
By Kenneth Richard on 15. May 2023
From 14,000 to 45,000 years ago, when the atmospheric CO2 values were said to be under 200 ppm, California lakes record millennial-scale mean annual air temperature (MAAT) variations of over 12°C and intervals when it was nearly 4°C warmer than modern. Per a new paleotemperature reconstruction (Olson et al., 2023) from a California lake, there […]
Posted in CO2 and GHG, Paleo-climatology |
By Kenneth Richard on 27. April 2023
During the last interglacial (LIG) 127 to 119k years ago, when CO2 levels were said to be only 275 ppm, Greenland’s Camp Century surface was ice free, vegetated. Today this same site is buried under a 1.4 kilometers-high ice sheet. The Arctic was sea ice free during the LIG (Diamond et al., 2021). Image Source: […]
Posted in Arctic, Paleo-climatology
By Kenneth Richard on 24. April 2023
A new study exposes the uncertainty in solar activity reconstructions, but suggests solar models explain climate changes far better than atmospheric CO2 concentrations. Proxy model estimates of the impact of solar variability on climate are highly uncertain. For example, estimations of the increase in solar irradiance over the last 400 years range anywhere from 0.75 […]
Posted in CO2 and GHG, Paleo-climatology, Solar Sciences |
By Kenneth Richard on 17. April 2023
Earth’s average annual temperature fluctuated by as much as 35°C (at high latitudes) from one millennial-scale period to the next during the last glacial period. A recently-published 2-part study (Smul′skii, 2022a and 2022b) utilizes established orbital and insolation data to calculate Earth’s average temperature today (0 k years ago), 14.4°C, and at 25°N, 45°N, 65°N, […]
Posted in Natural Variability, Paleo-climatology |
By Kenneth Richard on 6. April 2023
Back in the Early Holocene, when CO2 levels were said to be ~255 ppm, Arctic Svalbard was warm enough to accommodate abundant numbers of thermophiles, or warmth-demanding species. Only “remnants” of these species and their habitat exist in today’s much-colder Arctic. With the exception of a few centuries in recent millennia, today’s Svalbard (Arctic) is […]
Posted in Arctic, Paleo-climatology, Sea Ice |
By Kenneth Richard on 3. April 2023
Contrary to alarmist claims, the seas have been retreating and the coasts have been expanding seaward along the coasts of southern India since the early 1800s. Korkai was a port city, capital, and the principal trade center for India’s Pandya Kingdom from the 6th to 9th centuries CE. While Korkai was situated on the sea […]
Posted in Little Ice Age, Paleo-climatology, Sea Levels |
By Kenneth Richard on 16. March 2023
“Chironomid‐based temperature reconstructions in the central eastern Alps showed…between ca. 10 000 and 8600 cal a BP…a thermal maximum of up to 4.5°C higher temperatures than present” – Caf et al., 2023 With the exception of a century or two during the Little Ice Age (~1500-1900 CE), the European Alps have had a much higher […]
Posted in Paleo-climatology |
By Kenneth Richard on 13. March 2023
A series of paleoclimate lake reconstructions across China in recent years have failed to support the global-scale warming narrative. Per a new lake temperature reconstruction (Li et al., 2023) from Central China, there were distinct “warm intervals during the RWP [Roman Warm Period] (403–413 CE), with a temperature 2.89°C higher than that of the mean […]
Posted in Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 6. March 2023
Most of the 1100 Pacific and Indian Ocean islands have been growing, not shrinking in size, in the last half century. Activists convinced humans are able to exert fundamental control over ocean dynamics claim the rates of sea level rise and modern climate change are so rapid and unprecedented that modern changes are dramatically affecting […]
Posted in Paleo-climatology, Sea Levels |
By Kenneth Richard on 2. March 2023
An ancient vegetative and fauna ecosystem discovery in northernmost Greenland reveals how substantially warmer polar climates were when CO2 levels were said to be much lower than today. Reconstruction of the Kap København Formation ecosystem 2 million years ago. Image credit: Beth Zaiken. Source: Sci.News The northern coasts of Greenland are today a barren polar […]
Posted in Arctic, Paleo-climatology |
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