Paleo-climatology

Data From 2 Independent Studies Show No Correlation Between CO2 And Temperature

Data From 2 Independent Studies Show No Correlation Between CO2 And Temperature

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Share this…FacebookTwitterGerman climatologist Professor Dr. Horst-Joachim Lüdecke recently took data from two independent studies and superimposed them. The result shows  the long claimed atmospheric CO2-global temperature correlation doesn’t exist.  The first data set was global temperature anomaly going back 600 million years, taken from the results of a paper by Came and Veizer, appearing in […]

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Warmth-Demanding Species, Glacier Melt Measurements Affirm Early Holocene Svalbard Was 7°C Warmer Than Now

Warmth-Demanding Species, Glacier Melt Measurements Affirm Early Holocene Svalbard Was 7°C Warmer Than Now

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Share this…FacebookTwitterUsing biomarker evidence (for example, the Early Holocene presence of sea creatures unable to survive below fixed warmth thresholds) and glacier melt extent measurements (for example, sea shells buried 6 km inside a glacier), scientists have been colloborating on a growing consensus that much of Arctic Svalbard was about 7°C warmer than today during […]

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Natural Variability: The Northern Hemisphere Cooled And Warmed By 1°C In Decades ~1500 Years Ago

Natural Variability: The Northern Hemisphere Cooled And Warmed By 1°C In Decades ~1500 Years Ago

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Share this…FacebookTwitterIt is claimed Earth’s surface has warmed by 1°C in the last 140 years – which is a supposedly rapid climate change. But a new study suggests the Northern Hemisphere surface naturally cooled by 1°C in 8 or 9 years, then warmed up again by 1°C within decades during the Late Antique Little Ice […]

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New Study Shows CO2 Changes Lag Decadal-Scale Warming By ~1000 Years In The Northern Hemisphere

New Study Shows CO2 Changes Lag Decadal-Scale Warming By ~1000 Years In The Northern Hemisphere

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Share this…FacebookTwitterFrom about 80,000 to 20,000 years ago, Greenland temperatures abruptly warmed by about 10°C in just a few decades on at least 20 occasions. And then, about 870 to 1,500 years later, CO2 rose.  Li and Born (2019) document 8-16°C climate warmings (Dansgaard-Oeschger events) in Greenland that extended to both hemispheres between about 80 […]

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Schooled: Warmth-Sensitive Fish Teach Us They Swam In A 4-5°C Warmer Ocean About 5000 Years Ago

Schooled: Warmth-Sensitive Fish Teach Us They Swam In A 4-5°C Warmer Ocean About 5000 Years Ago

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Share this…FacebookTwitterExtensive hake (fish) skeletal remains in ocean waters too cold for this species to occupy today suggest past ocean temperatures were several degrees warmer. Fish habitats are limited by specific temperature boundaries. In a new study, for example,  Wheeland  and Morgan (2020) found there was a pronounced ocean warming from the 1980s to late […]

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New Study: 'The Most Suitable Place In The World For Temperature Reconstruction' Shows Net Cooling Since The 1930s

New Study: ‘The Most Suitable Place In The World For Temperature Reconstruction’ Shows Net Cooling Since The 1930s

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Share this…FacebookTwitterA new 1876-present temperature reconstruction for Northern Finland shows the 1930s were the warmest period of the last 140 years. And there has been no net warming since. Tree density analysis, MXD, has a “more prominent association with temperature” than measuring tree ring widths because it can more clearly separate precipitation factors affecting tree […]

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Greenland's Kilometers-Thick Ice Sheet Routinely Disappears ('Ice-Free') When CO2 Levels Hover Below 280 ppm

Greenland’s Kilometers-Thick Ice Sheet Routinely Disappears (‘Ice-Free’) When CO2 Levels Hover Below 280 ppm

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Share this…FacebookTwitterThere is no apparent connection between Greenland’s ice melt and atmospheric CO2 concentrations. The ice that blankets Greenland today stands over 3 kilometers high. This ice volume can almost completely vanish – with just a tiny ice cap in the eastern highlands remaining – when CO2 concentrations only reach pre-1750 levels, or 260 to […]

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No Changes Behind The Changes: New Findings Show Europe Climate Driven By Westerly Winds For 14.5 Million Years!

No Changes Behind The Changes: New Findings Show Europe Climate Driven By Westerly Winds For 14.5 Million Years!

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Share this…FacebookTwitterFrom the Atlantic to the Alps: westerly winds have determined the climate in Central Europe for 14.5 million years (Translated/edited from the German by P. Gosselin) Sabine Wendler of the Senckenberg Biodiversity and Climate Research Centre Press Office Senckenberg Research Institute and Nature Museums Senckenberg scientists in Germany have just studied the climate optimum […]

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New Studies Suggests Sea Levels Are Lower Today Than They Were Even During The Little Ice Age

New Studies Suggests Sea Levels Are Lower Today Than They Were Even During The Little Ice Age

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Share this…FacebookTwitterCoastal history analyses increasingly suggest sea levels are lower today than at any time in the last 7000 years – even lower than the 1600s to 1800s. Recently we compared cartology from the 17th to 19th centuries to direct aerial images of coastal positions today. Rather surprisingly, there seemed to be more land area […]

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New Study: Arctic Waters Were 4°C Warmer Than Today And Nearly Sea-Ice Free Year-Round ~4100 Years Ago

New Study: Arctic Waters Were 4°C Warmer Than Today And Nearly Sea-Ice Free Year-Round ~4100 Years Ago

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Share this…FacebookTwitterToday, the region north of Svalbard is encrusted with sea ice for all but a few weeks per year and summer sea surface temperatures (SSTs) hover near 0°C.  Scientists (Brice et al., 2020) have determined this same region had sea ice-free conditions last about 10 months per year while SSTs reached 4°C just ~4100 […]

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New Study: Region's Climate Aligns With Solar Forcing - Today's 'Natural' Warm Period Will Last 'Some More Decades'

New Study: Region’s Climate Aligns With Solar Forcing – Today’s ‘Natural’ Warm Period Will Last ‘Some More Decades’

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Share this…FacebookTwitterIn a new climate reconstruction for the Tibetan Plateau (Liang et al., 2020), scientists report a) the highest Holocene temperatures occurred about 8,500 to 6,000 years ago; b) “century-scale climate fluctuations” correlate “statistically and visually” with solar forcing estimates; and c) “we are in the middle of the 500-yr-long relatively warm period” and “this […]

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New Study Indicates Iceland Must Have Been 3°C Warmer During The Early Holocene To Match The Glacier Record

New Study Indicates Iceland Must Have Been 3°C Warmer During The Early Holocene To Match The Glacier Record

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Share this…FacebookTwitterDuring the Early Holocene, when CO2 levels lingered near 260 ppm, ice core records suggest surface temperatures in Iceland were about 3°C warmer than today. Iceland’s extensive lakes and glaciers topography provides a verifiable history of the region’s paleoclimates. For example, scientists can infer summer temperatures 3°C warmer than today in Iceland to account […]

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