Paleo-climatology

Consensus? 500+ Scientific Papers Published In 2018 Support A Skeptical Position On Climate Alarm

Consensus? 500+ Scientific Papers Published In 2018 Support A Skeptical Position On Climate Alarm

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Share this…FacebookTwitterIn 2018,  over 500 scientific papers were published that cast doubt on the position that anthropogenic CO2 emissions function as the climate’s fundamental control knob…or that otherwise serve to question the efficacy of climate models or the related “consensus” positions commonly endorsed by policymakers and mainstream media sources. More than 500 scientific papers published […]

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The Discovery Of Tree Trunks Under Glaciers 600 Meters Atop Today's Treeline Date To The Last ICE AGE

The Discovery Of Tree Trunks Under Glaciers 600 Meters Atop Today’s Treeline Date To The Last ICE AGE

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Share this…FacebookTwitterTree Trunk Conundrum Image Source: Ganyushkin et al., 2018 Between 60 and 40 thousand years ago, during the middle of the last glacial, atmospheric CO2 levels hovered around 200 ppm – half of today’s concentration. Tree remains dated to this period have been discovered 600-700 meters atop the modern treeline in the Russian Altai […]

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A Fabricated 'Uptick'? Marcott's 2013 Hockey Stick Graph Debunked By Marcott's Own 2011 Ph.D Thesis

A Fabricated ‘Uptick’? Marcott’s 2013 Hockey Stick Graph Debunked By Marcott’s Own 2011 Ph.D Thesis

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Share this…FacebookTwitterUnmasking Marcott’s “Uptick” 20th century “uptick” from Marcott et al., 2013, RealClimate.org   Almost immediately after it was introduced to the public, the lead author of Marcott et al. (2013) squelched the narrative that said the hockey-stick-shaped reconstruction he and his colleagues produced is a robust representation of modern global-scale temperature changes. In an interview with Marcott […]

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New Treeline, Permafrost Evidence Strongly Affirms The Mid-Holocene Was 3°C Warmer Than Today

New Treeline, Permafrost Evidence Strongly Affirms The Mid-Holocene Was 3°C Warmer Than Today

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Share this…FacebookTwitterNewly published macrofossil discoveries from 4 papers strongly suggest that modern warmth may still be about 3°C colder than nearly all of the last 10,000 years. Image Source: Leunda et al. (2018) 1. Permafrost is still present today in a region that was permafrost-free throughout the Holocene (until the onset of the Little Ice Age) […]

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2 More New Climate Reconstructions Indicate Rapid COOLING In The Last 100+ Years

2 More New Climate Reconstructions Indicate Rapid COOLING In The Last 100+ Years

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Share this…FacebookTwitterThe evidence that “global” warming has not been global in scale continues to accumulate.  Two more new reconstructions from the Western Pacific (He et al., 2018) and subpolar North Atlantic (Orme et al., 2018)  indicate that modern temperatures have continued to decline since the onset of the Little Ice Age.  These add to the […]

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New Study: Medieval Warm Period Not Limited To North Atlantic, But Occurred In South America As Well

New Study: Medieval Warm Period Not Limited To North Atlantic, But Occurred In South America As Well

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Share this…FacebookTwitterGlobal warming alarmist scientists like claiming that the well documented Medieval Warm Period (MWP) was merely a regional phenomenon, and not global. However a new publication by Lüning et al adds yet another study that shows the warm period from 1000 years ago was indeed global. ================================ Image source: here. Preindustrial climate change in […]

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Missed A Few, IPCC? 368 New 2018 Papers Support A Skeptical Position On Climate Alarmism

Missed A Few, IPCC? 368 New 2018 Papers Support A Skeptical Position On Climate Alarmism

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Share this…FacebookTwitterIn the first 9½ months of 2018,  368 scientific papers have been published that cast doubt on the position that anthropogenic CO2 emissions function as the climate’s fundamental control knob…or that otherwise serve to question the efficacy of climate models or the related “consensus” positions commonly endorsed by policymakers and mainstream media sources. These […]

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Scotland 800-Year Reconstruction Shows Temperatures Were As Warm Or Warmer In The Past!

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Share this…FacebookTwitterScotland climate over past 800 years: Pre-industrial warm phases provide answers By Dr. Sebastian Lüning and Prof. Fritz Vahrenholt (German text translated/edited by P Gosselin) How do today’s temperatures fit into the climate-historical context? This is one of the main tasks of today’s climate research. A group of researchers led by Milos Rydval have […]

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10 New Reconstructions Show Today's Temperatures Still Among The Coldest Of The Last 10,000 Years

10 New Reconstructions Show Today’s Temperatures Still Among The Coldest Of The Last 10,000 Years

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Share this…FacebookTwitterEven though CO2 concentrations hovered well below 300 ppm throughout most of the Holocene, newly published paleoclimate reconstructions affirm that today’s surface temperatures are only slightly warmer (if at all) than the coldest periods of the last 10,000 years.  This contradicts the perspective that temperatures rise in concert with CO2 concentrations.  Bottom Graph Source: Rosenthal et […]

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New Arctic Study Finds Spring Sea Ice Melted 2 Months Earlier Than Today During Roman, Medieval Times

New Arctic Study Finds Spring Sea Ice Melted 2 Months Earlier Than Today During Roman, Medieval Times

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Share this…FacebookTwitterScientists have determined that today’s Arctic sea ice concentrations are still much higher than they have been for most of the last several thousand years, undermining claims that modern era Arctic sea ice changes are remarkable, unusual, or unprecedented.  Source: Kolling et al., 2018 In the graphical illustration of Late Holocene West Greenland sea ice […]

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108 Graphs From 89 New Papers Invalidate Claims Of Unprecedented Global-Scale Modern Warmth

108 Graphs From 89 New Papers Invalidate Claims Of Unprecedented Global-Scale Modern Warmth

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Share this…FacebookTwitterDuring 2017, there were 150 graphs from 122 scientific papers published in peer-reviewed journals indicating modern temperatures are not unprecedented, unusual, or hockey-stick-shaped — nor do they fall outside the range of natural variability.  We are a little over halfway through 2018 and already  108 graphs from 89 scientific papers undermine claims that modern era warming is […]

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Global Temps Plunged 1-2°C Within Decades 8.2 K and 4.2 K Years Ago - And It Could Happen Again

Global Temps Plunged 1-2°C Within Decades 8.2 K and 4.2 K Years Ago – And It Could Happen Again

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Share this…FacebookTwitterIn direct contrast with CO2-centric climate modeling, extensive paleoclimate evidence affirms that the Holocene climate has been far more variable in the past 12,000 years than during the relatively quiescent period we’ve enjoyed since the mid-19th century. In the absence of CO2 concentration changes or human interference, abrupt global cooling episodes led to agricultural […]

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New Science Affirms Arctic Region Was 6°C Warmer Than Now 9000 Years Ago, When CO2 Levels Were 'Safe'

New Science Affirms Arctic Region Was 6°C Warmer Than Now 9000 Years Ago, When CO2 Levels Were ‘Safe’

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Share this…FacebookTwitterUnearthed new evidence (Mangerud and Svendsen, 2018) reveals that during the Early Holocene, when CO2 concentrations hovered around 260 ppm, “warmth-demanding species” were living in locations 1,000 km farther north of where they exist today in Arctic Svalbard, indicating that summer temperatures must have been about “6°C warmer than at present”. Proxy evidence from […]

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What Scientific 'Consensus'? 254 New 2018 Papers Support A Skeptical Position On Climate Alarmism

What Scientific ‘Consensus’? 254 New 2018 Papers Support A Skeptical Position On Climate Alarmism

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Share this…FacebookTwitterIn just the first 6 months of 2018,  254 scientific papers have been published that cast doubt on the position that anthropogenic CO2 emissions function as the climate’s fundamental control knob…or that otherwise serve to question the efficacy of climate models or the related “consensus” positions commonly endorsed by policymakers and mainstream media sources. […]

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Inconvenient Climate History: South African Sea Levels 3 Meters Higher 5000 Years Ago

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Share this…FacebookTwitterSouth Africa Sea Level Was 3 Meters Higher 5000 Years Ago Than Today By Dr. Sebastian Lüning and Prof. Fritz Vahrenholt (German text translated/edited by P Gosselin) Today’s topic: Sea level rise around Africa. There the sea level is rising there like anywhere else. Already during the last warm phase, the Medieval Warm Period […]

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What Warming?  The First Blooming Date For Trees In Beijing Occurs No Earlier Today Than A.D. 1741-1795

What Warming? The First Blooming Date For Trees In Beijing Occurs No Earlier Today Than A.D. 1741-1795

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Share this…FacebookTwitterThe day of the year that a plant first blooms is widely considered to be “an important natural indicator of climate change” when observed over the course of decades to centuries.  A new study (Liu et al., 2018) reveals that a flowering plant in Beijing, the Amygdalus davidiana, has not been blooming any earlier in recent […]

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New Study: Denmark Sea Level Was 11-12.5 Meters Higher Than Now During The Mid-Holocene

New Study: Denmark Sea Level Was 11-12.5 Meters Higher Than Now During The Mid-Holocene

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Share this…FacebookTwitterIn a new paper, data from 57 sites along 17 km of coastal Denmark reveal that sea levels were 11 to 12.5 meters higher than they are today between 7,600 and 4,600 years ago. Image Source: Clemmensen et al., 2018 Most Holocene reconstructions do not indicate that sea levels were more than about 5 meters […]

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Swedish Researchers Confirm 20th Century Warming "Does Not Stand Out" Over Past 2500 Years!

Swedish Researchers Confirm 20th Century Warming “Does Not Stand Out” Over Past 2500 Years!

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Share this…FacebookTwitterA very recent study by Swedish scientists appearing in the journal Climate of the Past examining bottom water temperature (BWT) off the coast of Western Sweden (Gullmar Fjord) going back 2500 years found that “the most recent warming of the 20th century does not stand out.” Team of researchers led by Irina Polovodova Asteman, University of […]

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Scientists Find Sun-Driven Temperature Changes Led CO2 Changes By 1300-6500 Years In The Ancient Past

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Share this…FacebookTwitterIt has long been established in the scientific literature (and affirmed by the IPCC) that CO2 concentration changes followed Antarctic temperature changes by about 600 to 1000 years during glacial-interglacial transitions throughout the last ~800,000 years (Fischer et al., 1999; Monnin et al., 2001; Caillon et al., 2003; Stott et al., 2007; Kawamura et al., 2007). In contrast, two new […]

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New Scientific Evidence Robustly Affirms Scandinavian Temperatures Were 3-4°C Warmer 9000 Years Ago

New Scientific Evidence Robustly Affirms Scandinavian Temperatures Were 3-4°C Warmer 9000 Years Ago

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Share this…FacebookTwitterBecause trees may only grow within narrowly-defined temperature ranges and elevations above sea level, perhaps the most reliable means of assessing the air temperatures of past climates is to collect ancient treeline evidence.  In a new paper, Kullman (2018) found tree remnants at mountain sites 600 to 700 meters higher than where the modern […]

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