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By Kenneth Richard on 16. March 2023
Share this… Facebook Twitter“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 […]
Posted in Paleo-climatology |
By Kenneth Richard on 13. March 2023
Share this… Facebook TwitterA 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 […]
Posted in Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 6. March 2023
Share this… Facebook TwitterMost 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 […]
Posted in Paleo-climatology, Sea Levels |
By Kenneth Richard on 2. March 2023
Share this… Facebook TwitterAn 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 […]
Posted in Arctic, Paleo-climatology |
By Kenneth Richard on 23. February 2023
Share this… Facebook TwitterMore evidence emerges that modern rates of sea level rise are approximately 20-50 times slower than natural rising rates occurring during deglaciations. In tropical areas coral reef fossils form terraces, or flat surfaces bordered by ascending sloping surfaces. Terraces are formed at or near sea level, so their relative geological presence can […]
Posted in Paleo-climatology, Sea Levels |
By Kenneth Richard on 16. February 2023
Share this… Facebook TwitterEvidence of abundant lakes and ponds and the remains of vascular plants, warmth-demanding beetles, sponges, spruce forests…in a newly-discovered organic-rich deposit 480 m above sea level in High Arctic (76.4°N) northwest Greenland indicates the local climate was similar to that of today’s southern Greenland (~60°N) and North America during the Early Pleistocene […]
Posted in Arctic, Paleo-climatology |
By Kenneth Richard on 6. February 2023
Share this… Facebook TwitterClaims the Swedish Scandes are unprecedentedly warm and tree-covered today “appear as large and unfounded exaggerations,” as the “climate and arboreal responses” of the last few decades “are still inside the frames of natural historical variation.” – Kullman, 2022 and Kullman, 2022a Extensive birch forest fossils can be dated to the early- […]
Posted in Medieval Warm Period, Natural Variability, Paleo-climatology |
By Kenneth Richard on 26. January 2023
Share this… Facebook TwitterIndependent analyses from multiple independent sources indicate Arctic Siberia was 3 to 5°C warmer than today during the peak of the last glacial, or when CO2 levels were below 200 ppm. Measurements from Antarctica’s ice sheet are almost invariably used to characterize both the global-scale atmospheric CO2 levels and climate for the […]
Posted in Antarctic, Arctic, Paleo-climatology |
By Kenneth Richard on 23. January 2023
Share this… Facebook TwitterRobust evidence from bison remains recovered from the Austrian Alps in 2020 and 2021 invalidate claims modern Alpine temperatures are unusually warm. A new study suggests that from about 6000 to 1200 years ago European bison fed on deciduous tree/vegetation that grew at Alpine altitudes reaching around 800 m higher than they do […]
Posted in Paleo-climatology |
By Kenneth Richard on 12. January 2023
Share this… Facebook TwitterIt 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 […]
Posted in Climate Sensitivity, CO2 and GHG, Paleo-climatology |
By Kenneth Richard on 2. January 2023
Share this… Facebook TwitterThe modern notion that human CO2 emissions are equivalent to a “deadly poison” may one day be viewed as “the greatest mass delusion in the history of the world.” In a new paper published in the Journal of Sustainable Development, Manheimer (2022) summarizes some of the evidence for the lack of correlation […]
Posted in CO2 and GHG, Paleo-climatology, Scepticism |
By Kenneth Richard on 29. December 2022
Share this… Facebook Twitter“Compared to the present climate, the Arctic climate in MH [Mid-Holocene] summer became warmer and had less sea ice” (Dong et al., 2022). While the modern Arctic “remains largely covered by sea ice in June and July,” the higher summer sea surface temperatures (SSTs) from about 3,000 to 7,000 years ago meant […]
Posted in Arctic, Paleo-climatology, Sea Ice |
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