Paleo-climatology

Tree Taxa Affirm A Much Warmer Alpine Climate Than Today For Nearly All Of The Last 10,000 Years

Tree Taxa Affirm A Much Warmer Alpine Climate Than Today For Nearly All Of The Last 10,000 Years

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 […]

New Study: Roman And Medieval Warm Periods Were 2.8°C Warmer Than 1970-2000 In Central China

New Study: Roman And Medieval Warm Periods Were 2.8°C Warmer Than 1970-2000 In Central China

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 […]

Recent Shoreline Changes To Pacific Islands 'Dwarfed' By Change Magnitudes Of The Past

Recent Shoreline Changes To Pacific Islands ‘Dwarfed’ By Change Magnitudes Of The Past

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 […]

2M Years Ago Corals, Manatees Occupied N. Greenland Seas As Elephants Browsed A Forested Landscape

2M Years Ago Corals, Manatees Occupied N. Greenland Seas As Elephants Browsed A Forested Landscape

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 […]

New Study: Mid-Holocene Sea Level Was 2-3 m Higher Than Today...Rates Of Rise Reached 80 mm/yr

New Study: Mid-Holocene Sea Level Was 2-3 m Higher Than Today…Rates Of Rise Reached 80 mm/yr

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 […]

New Study Indicates NW Greenland Was 'At Least 9°C' Warmer Than Today When CO2 Was ~300 ppm

New Study Indicates NW Greenland Was ‘At Least 9°C’ Warmer Than Today When CO2 Was ~300 ppm

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 […]

3 Paleontologist Studies Affirm North Sweden Was 3°C Warmer Than Today When CO2 Was Below 280 ppm

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- […]

Why Is Antarctica's Climate Considered 'Global' But Arctic Siberia's Is Not?

Why Is Antarctica’s Climate Considered ‘Global’ But Arctic Siberia’s Is Not?

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 […]

Warmth Limits For Tree Growth Affirm Austria Was 4-7°C Warmer Than Today 2000 Years Ago

Warmth Limits For Tree Growth Affirm Austria Was 4-7°C Warmer Than Today 2000 Years Ago

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 […]

A Glaring Inconsistency In The Claimed Forcing Values Driving Past Versus Present Climate

A Glaring Inconsistency In The Claimed Forcing Values Driving Past Versus Present Climate

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 […]

Scientist: 'There Is No Climate Crisis' And 'No Particular Correlation Between CO2 And Temperature'

Scientist: ‘There Is No Climate Crisis’ And ‘No Particular Correlation Between CO2 And Temperature’

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 […]

Another New Study Affirms The Arctic Was Warmer With Less Sea Ice During The Mid-Holocene

Another New Study Affirms The Arctic Was Warmer With Less Sea Ice During The Mid-Holocene

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 […]

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