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By Kenneth Richard on 25. April 2019
Share this…FacebookTwitterAnother new paper published in Earth and Planetary Science Letters casts further doubt on the paradigm that says CO2 has historically been a temperature driver. Evidence from southern California’s Lake Elsinore indicates today’s regional temperatures (18°C) are 4-5°C colder than a millennial-scale period between 29,000 to 26,000 years ago (29 to 26 ka), or […]
Posted in Paleo-climatology |
By Kenneth Richard on 18. April 2019
Share this…FacebookTwitterAccording to the calculations of Dr. James Hansen, the radiative influence derived from the increase in CO2 during the last deglaciation was so negligible that it equated to “a third of energy required to power a honey bee in flight” (Ellis and Palmer, 2016). Image Source: Ellis and Palmer, 2016 Between about 22,000 and […]
Posted in Climate Sensitivity, CO2 and GHG, Glaciers, Paleo-climatology |
By Kenneth Richard on 4. April 2019
Share this…FacebookTwitterA new paper indicates the rise in CO2 concentration occurred well after the Northern Hemisphere’s ocean circulation changes drove the abrupt warming (~11,700 years ago) that ended the last ice age – a lag that effectively leaves no causal role for CO2 during deglaciation. Image Source: Muschitiello et al., 2019 Ice core evidence from […]
Posted in Cooling/Temperature, Paleo-climatology |
By P Gosselin on 30. March 2019
Share this…FacebookTwitterA new study has just come out in the journal Earth and Planetary Science Letters: Biomarkers reveal abrupt switches in hydroclimate during the last glacial in southern California. Hat-tip: reader Mary Brown It contradicts claims often made by global warming alarmists that the perceived California climate change is unusual, and that it is mostly […]
Posted in Paleo-climatology |
By Kenneth Richard on 22. March 2019
Share this…FacebookTwitterCould a transition in paleoclimate reconstruction be underway? More and more, scientists aren’t hiding statements or graphical depictions of the lack of modern warming or the much-warmer Holocene past. A compilation of 35 papers from across the globe indicate that modern climate is not unusual, remarkable or unprecedented, and that large regions of the […]
Posted in Hockey Team, Paleo-climatology |
By Kenneth Richard on 11. March 2019
Share this…FacebookTwitterDuring the Mid-Holocene, when CO2 concentrations were stable and low (270 ppm), Antarctica’s massive Ross Ice Shelf naturally collapsed, adding the meltwater equivalent of 3-4 meters to sea levels. Because CO2 concentrations changed very modestly during the pre-industrial Holocene (approximately ~25 ppm in 10,000 years), climate models that are predicated on the assumption that […]
Posted in Antarctic, Glaciers, Paleo-climatology, Sea Levels |
By Kenneth Richard on 25. February 2019
Share this…FacebookTwitterZhokhov Island in the Siberian High Arctic today exhibits inhospitably severe climate conditions, desolate tundra, and year-round pack ice in the surrounding sea. During the Early Holocene this same island was warm enough to host waterfowl species, birch trees, and year-round human residents who hunted polar bear and reindeer. Image Source: Makeyev et al., […]
Posted in Arctic, Paleo-climatology |
By Kenneth Richard on 18. February 2019
Share this…FacebookTwitter I. According to the IPCC, the true manifestation of “global warming” can almost exclusively (93%) be found in the oceans. The surface air or atmospheric heat changes amount to just 1% of the “global warming” representation. Image Source: IPCC (2013) II. In the first 2000 meters of the global ocean, there has only […]
Posted in Natural Variability, Oceans, Paleo-climatology, Scepticism |
By P Gosselin on 5. February 2019
Share this…FacebookTwitterThe European Institute for Climate and Energy (EIKE) posted a video of prominent German geologist Dr. Stefan Kröpelin, who in a presentation late last year in Munich called the notion of CO2-induced climate tipping points scientifically outlandish. He also called the prospect of the Sahara spreading into Europe preposterous. EIKE recently wrote an article […]
Posted in Drought and Deserts, Paleo-climatology, Scepticism |
By Kenneth Richard on 3. January 2019
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 […]
Posted in Alarmism, Alternative Energy, Antarctic, Arctic, Climate Sensitivity, CO2 and GHG, Cooling/Temperature, Drought and Deserts, Glaciers, Hockey Team, Hurricanes/Tornados, Natural Variability, Ocean Acidification, Paleo-climatology, Scepticism, Sea Ice, Sea Levels, Solar Sciences, Tectonics/Volcanoes, Warming/CO2 Benefiting Earth, Wind Power |
By Kenneth Richard on 24. December 2018
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 […]
Posted in Paleo-climatology |
By Kenneth Richard on 13. December 2018
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 […]
Posted in Data Manipulation, Hockey Team, Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 26. November 2018
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) […]
Posted in Little Ice Age, Paleo-climatology |
By Kenneth Richard on 22. November 2018
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 […]
Posted in Cooling/Temperature, Paleo-climatology |
By P Gosselin on 3. November 2018
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 […]
Posted in Paleo-climatology |
By Kenneth Richard on 15. October 2018
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 […]
Posted in Alarmism, Antarctic, Arctic, Climate Sensitivity, CO2 and GHG, Cooling/Temperature, Glaciers, Hockey Team, Hurricanes/Tornados, Medieval Warm Period, Natural Oceanic Oscillations, Natural Variability, Ocean Acidification, Paleo-climatology, Sea Ice, Sea Levels, Solar |
By P Gosselin on 7. October 2018
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 […]
Posted in Paleo-climatology |
By Kenneth Richard on 10. September 2018
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 […]
Posted in Cooling/Temperature, Little Ice Age, Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 16. August 2018
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 […]
Posted in Arctic, Paleo-climatology, Sea Ice |
By Kenneth Richard on 2. August 2018
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 […]
Posted in Hockey Team, Paleo-climatology, Scepticism |
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