Paleo-climatology

The IPCC's Latest PAGES 2k (2019) Temperature Hockey Stick Is Contradicted By . . . PAGES 2k (2015)

The IPCC’s Latest PAGES 2k (2019) Temperature Hockey Stick Is Contradicted By . . . PAGES 2k (2015)

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Share this…FacebookTwitterThe IPCC’s latest report uses a hockey stick-shaped reconstruction of global temperatures that wholly contradicts previous records  produced by the same PAGES 2k and Oceans 2k consortiums from 4 years earlier. In 2015, the PAGES 2k Consortium published an updated (“corrected”) 0-2000 AD global reconstruction that showed a large portion of the 1st millennium […]

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The Western Pacific Has Continued Cooling Since The Little Ice Age Ended

The Western Pacific Has Continued Cooling Since The Little Ice Age Ended

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Share this…FacebookTwitterA new study suggests the modern (1994-2004) surface temperatures in the South China Sea are colder now than any time in the last 6000 years. Except for a brief interval ~500 years ago, SSTs have been consistently 2-4°C warmer than today since the middle Holocene in the South China Sea (Zhou et al., 2021). […]

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There Were 23 Global Warming Jolts Many Times Faster And Greater Than Modern During The Last Glacial

There Were 23 Global Warming Jolts Many Times Faster And Greater Than Modern During The Last Glacial

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Share this…FacebookTwitterDozens of rapid warming and cooling periods episodically occurred throughout the last glacial. However, they have often been dismissed as local-only events. A 2020 study published in Science robustly affirms steeper-than-today warming periods spanned both hemispheres and 23 of 25 were “globally synchronous.”  Geologists have long recognized that Greenland abruptly warmed up by 5 […]

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The USA's Rocky Mountains Have Not Been Cooperating With The Global Warming Narrative

The USA’s Rocky Mountains Have Not Been Cooperating With The Global Warming Narrative

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Share this…FacebookTwitterThere has been no net warming in the Rocky Mountains in the last 500 years. The southern Rocky Mountains were as warm or warmer than recent decades during the 1600s and 1700s and they have been cooling since the 1950s (Berkelhammer and Stott, 2012, Heeter et al., 2020). Image Source: Berkelhammer and Stott, 2012 […]

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Strong Link Between Solar Activity And Rapid Cooling (2-3°C/Century) In China During The Last 5000 Years

Strong Link Between Solar Activity And Rapid Cooling (2-3°C/Century) In China During The Last 5000 Years

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Share this…FacebookTwitterChina’s climate history includes multiple climate warming and cooling fluctuations of 4°C within centuries, with cold periods aligning with declines in solar irradiance. According to a new study (Zhang et al., 2021), northern China’s coldest temperatures of the last 5000 years occurred 300 calibrated years before present (cal yr BP), coinciding with the Little […]

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Large Herbivores Grazed On Grass Year-Round In The Arctic When CO2 Was 180 ppm. Now They Cannot.

Large Herbivores Grazed On Grass Year-Round In The Arctic When CO2 Was 180 ppm. Now They Cannot.

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Share this…FacebookTwitterA new study reports that during Pleistocene cold stages, when CO2 concentrations dipped below 200 ppm, Arctic Siberia had much more fertile soil and productive vegetation than exists today. Extensive grassland ecosystems could sustain year-round grazers: horses, mammoths, bison. Today this region’s large herbivores must be fed by humans to secure survival due to […]

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Sea Levels Surrounding Sweden Have Fallen 2 Meters Since 1731

Sea Levels Surrounding Sweden Have Fallen 2 Meters Since 1731

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Share this…FacebookTwitterDue primarily to land uplift, markings on “seal rocks” show dramatic declines in relative sea level along Sweden’s coasts in the last 290 years. The explanation for falling sea levels throughout much of Northern Europe is that the land in this region of the world is rising faster than eustatic sea levels are. Written […]

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New Study: Burden Of Proof Is On AGW Proponents As Ice Cores 'Invalidate' CO2-Driven Climate Change

New Study: Burden Of Proof Is On AGW Proponents As Ice Cores ‘Invalidate’ CO2-Driven Climate Change

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Share this…FacebookTwitterA French physicist recounts the evidence affirming temperature changes are the cause of changes in atmospheric CO2 concentrations throughout the last 423 thousand years of the ice core record, thus invalidating the claims of more than a negligible role for CO2 in affecting climate changes. In a new study  Dr. Pascal Richet re-emphasizes the […]

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Scientists: "Particularly Intense" Warmth Corresponded To "Greatest Ancient Civilization Of All Time"

Scientists: “Particularly Intense” Warmth Corresponded To “Greatest Ancient Civilization Of All Time”

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Share this…FacebookTwitterWarmth led to the rise of the Roman Empire, while cooling accompanied its demise A new paper appearing in Scientific Reports titled “Persistent warm Mediterranean surface waters during the Roman period” by Margaritelli et al looks at the climate at the time of the rise and fall of the Roman Empire, and beyond. Hat-tip: […]

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Dramatic Warming In The North Atlantic Since 2016! It's Now Almost As Warm As 1890!

Dramatic Warming In The North Atlantic Since 2016! It’s Now Almost As Warm As 1890!

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Share this…FacebookTwitterSea surface temperatures in the subpolar North Atlantic increased by nearly 1°C from 2015 to 2018 according to a new study (Desbruyères et al., 2021). As of 2020, this region is now almost as hot as it was in 2007,  1930, and 1890 (Birkel et al., 2018). Image Source: Desbruyères et al., 2021 Image […]

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Rainforests Near The South Pole And Summers 38°C Warmer Than Today During The Age Of Dinosaurs

Rainforests Near The South Pole And Summers 38°C Warmer Than Today During The Age Of Dinosaurs

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Share this…FacebookTwitterFossilized evidence of temperate rainforests only hundreds of kilometers from Antarctica’s South Pole (82°S) has been uncovered. It suggests the warmest mean month was 18.5°C about 90 million years ago. Today the warmest mean month for this location is about -20°C. Image Source: EarthSky (press release for Klages et al., 2020) Despite rapidly rising […]

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Uncovered: CO2 In Modern Ice Reaches 900 - 70,000 ppm - Wildly Incompatible With Atmospheric Levels

Uncovered: CO2 In Modern Ice Reaches 900 – 70,000 ppm – Wildly Incompatible With Atmospheric Levels

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Share this…FacebookTwitterIt’s considered canonical that global-scale atmospheric levels of CO2 from thousands of years ago can be precisely discerned just by examining air bubbles in ancient snow and ice from Antarctica. But an examination of the CO2 levels in modern snow and ice shows there are gigantic discrepancies between the measurements of CO2 in ice […]

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