Paleo-climatology

Dozens Of Scientists Reveal Most Of The Planet Is COLDER TODAY Than Most Of Past 8000 Years

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Share this…FacebookTwitterUndisputed temperature reconstructions from around the world show the planet was much warmer over most of the Holocene (past 10,000 years) than it is today.  Kenneth recently wrote how a wealth of new research in glacier and sea ice extent show modern Iceland is 2-4°C colder than all of the last 8000 years.  Only […]

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New Research Shows The Oceans Can 'Spontaneously' Warm 8°C In Under 100 Years 'Without External Trigger'

New Research Shows The Oceans Can ‘Spontaneously’ Warm 8°C In Under 100 Years ‘Without External Trigger’

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Share this…FacebookTwitterScientists are increasingly finding that abrupt, decadal-scale temperature changes of multiple degrees Celsius can arise unforced and spontaneously. The surface temperatures for the Greenland ice sheet have been known to warm 8 to 16°C “within decades or less” – yes,  fewer than 10 years – due to “unforced oscillations.” In other words, no external […]

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Modern Iceland's Climate Is Colder With More Ice Than Any Other Time In The Last 8000 Years Except The 1800s

Modern Iceland’s Climate Is Colder With More Ice Than Any Other Time In The Last 8000 Years Except The 1800s

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Share this…FacebookTwitterA wealth of new research in glacier and sea ice extent show modern Iceland is 2-4°C colder than all of the last 8000 years except for a slightly colder late 19th century. Even the 1700s were warmer with less ice than today in and around Iceland. A new study (Geirsdóttir et al., 2020) now […]

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Another New Study Determines Sea Surface Temperatures Were 1-5°C Warmer Than Now During The Last ICE AGE

Another New Study Determines Sea Surface Temperatures Were 1-5°C Warmer Than Now During The Last ICE AGE

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Share this…FacebookTwitterScientists report they must “exclude atmospheric pCO2 as a direct driver of SST variations” after finding the Atlantic Ocean’s surface was multiple degrees warmer than today from 90 to 20 thousand years ago, or when CO2 concentrations hovered below 200 ppm.  Another new study (Hou et al., 2020) casts even more doubt on the […]

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New Study Finds CO2 Reached 1980s-2000s Levels About 4,000 Years Ago In Japan

New Study Finds CO2 Reached 1980s-2000s Levels About 4,000 Years Ago In Japan

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Share this…FacebookTwitterCO2 reached 1980s (352 ppm, average) to 2000s (380 ppm, max) levels 2500-5500 years ago in Japan per stomata records. Scientists (Wang et al., 2020) have determined stomatal evidence can uncover large short-term CO2 fluxes of 50-100 ppm within a century or less. Measurements from a forest near Mt. Kurikoma, Japan, reveal minimum to […]

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Past Climate More Complex Than Previously Thought, Says Germany’s Alfred Wegener Institute

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Share this…FacebookTwitterAtmospheric CO2 just doesn’t change on a whim and cause global temperature to follow along in response.  Press release from The Alfred Wegener Institute (AWI): Irregular Appearances of Glacial and Interglacial Climate States During the last 2.6 million years of Earth’s climate has altered between glacial and interglacial states. As such, there have been […]

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2 More Studies Affirm A Glaring Lack Of Correlation Between CO2 And Temperature

2 More Studies Affirm A Glaring Lack Of Correlation Between CO2 And Temperature

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Share this…FacebookTwitterReconstructions of past temperatures show much colder periods with higher CO2 levels or as-warm or warmer periods with much lower CO2 levels. A new study (Paus, 2020) indicates modern July temperatures center around 7.5 to 8°C in the Scandes Mountains (Norway). Today’s CO2 atmospheric concentration has reached 410 ppm. During the latter stages of […]

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New Study: Western North America Was Much Warmer And Drier With Peak Wildfire Rates When CO2 Was 265ppm

New Study: Western North America Was Much Warmer And Drier With Peak Wildfire Rates When CO2 Was 265ppm

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Share this…FacebookTwitterThe southwestern US was nearly a desert from about 9000 to 5000 years ago, when Holocene peaks in aridity, surface temperature, and wildfire rates occurred. Arctic sea ice was at its lowest extent of the Holocene during these years. Image Source: Lachniet et al., 2020 A new extensively-referenced study (Lachniet et al., 2020) reviewing […]

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2 More Studies Affirm Nothing Unusual Or Unprecedented Is Occurring In Polar Climates Today

2 More Studies Affirm Nothing Unusual Or Unprecedented Is Occurring In Polar Climates Today

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Share this…FacebookTwitterOnly a few thousand years ago, when CO2 levels were both stable and low (~265 ppm), the  (1) Arctic had far less ice and more vegetation than it does now and (2) the massive rate of ice melt in Antarctica rendered modern melt rates negligible by comparison. A new study (Cherezova et al., 2020) […]

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New Study Effectively Eliminates Confidence In Human Attribution For Modern Global Warming

New Study Effectively Eliminates Confidence In Human Attribution For Modern Global Warming

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Share this…FacebookTwitterThe forcing uncertainties and lack of observational measurements in the top-to-bottom global ocean preclude an assessment that modern warmth is due to anthropogenic activities. Key points from a new paper (Gebbie, 2021): • 93% of the changes to the Earth’s energy budget, manifested as warming of the Earth system, are expressed in the global […]

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Scientists Have Determined A 5°C Warmer Earth 'Would Provide More Habitable Conditions'

Scientists Have Determined A 5°C Warmer Earth ‘Would Provide More Habitable Conditions’

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Share this…FacebookTwitterIn a new study, scientists insist that since the Earth’s highest biomass and biodiversity exist in the warmest regions, “higher temperatures than currently existing on Earth” and a “higher water content (absolute humidity) in the atmosphere” seem to be “more favorable” to the planet’s inhabitants. Until a few thousand years ago, when mammoths and […]

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New Study: East Antarctica Was Up To 6°C Warmer Than Today During The Medieval Warm Period

New Study: East Antarctica Was Up To 6°C Warmer Than Today During The Medieval Warm Period

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Share this…FacebookTwitterAs recently as 2000 to 1000 years ago, spanning the Roman to Medieval Warm Periods, East Antarctica was 5-6°C warmer than it is today. The consequent ice melt resulted in >60 meters higher water levels in East Antarctica’s lakes. East Antarctica has been rapidly cooling in recent decades, with magnitudes reaching -0.7°C to -2.0°C […]

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