Pollen Reconstructions Show The Last Glacial’s Warming Events Were Global, 10x Greater Than Modern

“D–O signals [10-16°C warming events within decades to centuries] are not just seen in Greenland – they are registered globally.” – Liu et al., 2026

From 57,000 to 29,000 years ago, with Last Glacial atmospheric CO2 concentrations flatlining at ~200 ppm, there were 11 instances when Greenland abruptly warmed by 10-16°C within a span of just 50 to 200 years (Liu et al., 2026).

Wide-ranging pollen-based temperature and precipitation reconstructions affirm these Dansgaard-Oeschger (D-O) events did not just occur in Greenland, they were realized across the globe.

Winter warming intervals of 2-5°C and up to 5-20°C within decades (centuries) also occurred at pollen sites in Asia, Europe, South and Central America, Africa, Middle East, and Australia.

Thus, there is nothing remotely unusual or unprecedented about the rate or magnitude of modern global warming.

Image Source: Liu et al., 2026

4 responses to “Pollen Reconstructions Show The Last Glacial’s Warming Events Were Global, 10x Greater Than Modern”

  1. Global Warming Insights from Ancient Climate Events

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  3. Pollen Reconstructions Show The Last Glacial’s Warming Events Were Global, 10x Greater Than Modern | Last Chance For Freedom

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  4. Nick Schroeder, BSME CU '78

    ABSTRACT:
    Earth is cooler with atmosphere/water vapor/30% albedo not warmer.
    Ubiquitous RGHE heat balance graphics don’t plus violate GAAP and LoT.
    Kinetic heat transfer processes of contiguous atmospheric molecules render a surface BB impossible.
    RGHE is bogus & CAGW is a scam!

    FACTS & EVIDENCE:

    FACT 1: Remove the Earth’s atmosphere or even just the GHGs and the Earth becomes much like the Moon, no water vapor or clouds, no ice or snow, no oceans, no vegetation, no 30% albedo becoming a barren rock ball, hot^3 (400 K) on the lit side, cold^3 (100 K) on the dark. At Earth’s distance from the Sun space is hot (394 K) not cold (5 K).
    That’s NOT what the RGHE theory says.
    EVIDENCE:
    RGHE theory says “288 K (15 C) w – 255 K (-18 C) w/o = a 33 C colder ice ball Earth.” 255 K assumes w/o case keeps 30% albedo, an assumption akin to criminal fraud. Nobody agrees 288 K is GMST plus it was 15 C in 1896. 288 K is a physical surface measurement. 255 K is a S-B equilibrium calculation at ToA. Apples and potatoes.
    Nikolov “Airless Celestial Bodies”
    Kramm “Moon as test bed for Earth”
    UCLA Diviner lunar mission data
    JWST solar shield (391.7 K)
    Sky Lab golden awning
    ISS HVAC design for lit side of 250 F. (ISS web site)
    Astronaut backpack life support w/ AC and cool water tubing underwear. (Space Discovery Center)

    FACT 2: The GHGs require “extra” energy upwelling from a surface radiating as a BB.
    EVIDENCE:
    According to TFK_bams09 atmospheric power flux balance, numerous clones and SURFRAD the GHGs must absorb an “extra” 396 BB/333 “back”/63 2nd net W/m^2 LWIR energy upwelling from the surface allegedly radiating as a BB. These graphics & data tables contain egregious arithmetic and thermodynamic errors.

    FACT 3: Because of the significant (60% per TFK_bams09) non-radiative, i.e. kinetic, heat transfer processes of the contiguous participating atmospheric molecules the surface cannot upwell “extra” energy as a near Black Body.
    EVIDENCE:
    As demonstrated by experiment, the gold standard of classical science.
    For the experimental write up see:
    https://principia-scientific.org/debunking-the-greenhouse-gas-theory-with-a-boiling-water-pot/
    Search: Bruges group “boiling water pot” Schroeder

    CONCLUSION:
    No RGHE, no GHG warming, no CAGW or mankind/CO2 driven climate change.

    Nick Schroeder, BSME CU ‘78
    Colorado Springs
    719 651 7383
    Nschroeder48@aol.com

    ACRONYMS & DEFINITIONS

    RGHE: Radiative GreenHouse Effect
    GAAP: Generally Accepted Accounting Principles
    LoT: Laws of Thermodynamics
    BB: Black Body: A thermodynamic system that absorbs ALL incoming energy and emits ALL that energy by radiation alone. Only possible in a vacuum.
    CAGW: Catastrophic Anthropomorphic Global Warming
    GHGs: GreenHouse Gases, all of them including water vapor
    K: Celsius degree units on the Kelvin scale used for serious science (No such thang as a Kelvin unit)
    hot^3: hot cubed, i.e. hot*hot*hot
    cold^3: cold cubed, i.e. cold*cold*cold
    albedo: Ice, snow, clouds, etc. that reflect incoming solar radiation thereby cooling the Earth
    C: Celsius degree units on the Celsius scale
    UCLA: Univ of CA LA
    JWST: James Webb Space Telescope
    HVAC: Heating, Ventilation, Air Conditioning
    F: degrees Fahrenheit on the F scale. Not useful for formal science.
    ISS: International Space Station
    Space Discovery Center: Colorado Springs
    TFK Trenberth-Fasullo-Kiehl, UCAR climate scientists responsible for GHE budget concept
    UCAR: Univ of CO Atmos Research
    SURFRAD: NOAA network of stations that measure the surface radiation budget and aerosols over the Earth’s land surface.
    LWIR: Long Wave Infra-Red radiation.
    CO2: Carbon Dioxide
    BSME: Bachelor of Science Mechanical Engineering
    CU: University of Colorado, Boulder

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