Browse: Home / Paleo-climatology
By P Gosselin on 14. April 2024
Dr. Michael E. Mann and the IPCC claims of a hockey stick temperature trend are challenged. A paper published by a team of scientists of the Russian Academy of Sciences led by В. V. Klimenko presents a quantitative reconstruction of the mean annual temperatures of northeastern Europe for the last two millennia. The study was […]
Posted in Arctic, Paleo-climatology |
By Kenneth Richard on 11. April 2024
The North Atlantic, the Pacific Northwest (USA), and northern Finland were all warmer than today between 1000 and 2000 years ago. Today’s (2000 CE) July air temperatures in the Azores – archipelago islands in the middle North Atlantic, ~1400 km west of Portugal – are visually shown to average about 10 to 11°C in a […]
Posted in Cooling/Temperature, Paleo-climatology |
By Kenneth Richard on 8. April 2024
Reconstructions of paleo CO2 levels openly rely on data derived from plant stomata. But when modern (1800s-present) CO2 measurements from stomata conflict with the narrative that humans drive CO2 levels, they are patently rejected. Scientists readily acknowledge plant stomata evidence from one location are “widely used as an effective tool for paleoenvironmental reconstructions” of global […]
Posted in CO2 and GHG, Paleo-climatology |
By Kenneth Richard on 1. April 2024
Yet another region of the world has failed to cooperate with then anthropogenic global warming narrative. Asad et al., 2024 “The longest 10 years’ warm periods were observed during the early decades of the twentieth century (AD 1918–1927…)…” “The five hottest years (based on 7.33 °C ± 0.99 °C) were AD 1896 (9.80 °C), 1892 […]
Posted in Natural Variability, Paleo-climatology |
By Kenneth Richard on 28. March 2024
Modern relative sea levels are near the lowest in the last 7,000 years. Two studies, independently published, identify Mid-Holocene sea levels in northern Norway (north of the Arctic circle) as 7 to 9 meters higher than today before declining to the present (Balascio et al., 2024, Nielsen et al., 2024). This region of the Arctic […]
Posted in Paleo-climatology, Sea Levels |
By Kenneth Richard on 22. March 2024
The radiative effect of natural wildfire aerosol forcing alone can be said to fully cancel out the total accumulated forcing from 170 years of CO2 increases in the current climate. It has been estimated that the total change in climate forcing (radiation imbalance) from the 1750 to present CO2 concentration increase has been 1.82 W/m². […]
Posted in Models, Natural Variability, Paleo-climatology, Uncertainty Error |
By Kenneth Richard on 11. March 2024
CO2-induced global warming was supposed to intensify the hydrological cycle and extreme precipitation. It hasn’t. New research (Mitchell and Knapp, 2024) at a southeastern United States study site indicates there has been no significant trend in either total precipitation or intense rainfall events (IRE) over the last 250 years (1770-2020). However, there was more IRE […]
Posted in Natural Variability, Paleo-climatology |
By Kenneth Richard on 7. March 2024
A -0.005°C temperature change over a span of 60 years in northern Pakistan (Himalaya region) is ostensibly having “adverse impacts in multiple sectors.” The first sentence of a new paper’s (Khan et al., 2024) abstract claims: “Hindu Kush Himalaya region is experiencing rapid climate change with adverse impacts in multiple sectors.” But in the body […]
Posted in Alarmism, Cooling/Temperature, Natural Variability, Paleo-climatology |
By Kenneth Richard on 4. March 2024
The warmest 50-year period in northeastern China occurred from 1844-1893. Li et al., 2024 “Compared with single years, in general, high or low temperatures that persist for many years will more significantly affect the growth of trees [30]. When we defined years with T12-1 ≥ −10.73 °C (Mean + 1σ) and T12-1 ≤ −12.61 °C […]
Posted in Paleo-climatology, Solar Sciences |
By Kenneth Richard on 1. March 2024
Ice flowed out of the interior of the Greenland ice sheet at much stronger rates and with much greater variability than today throughout the Holocene – or until about 2,000 years ago. New research (Jansen et al., 2024) has determined Greenland’s ice streams vary according to internal processes, and not necessarily due to external changes […]
Posted in Arctic, Glaciers, Paleo-climatology |
By Kenneth Richard on 26. February 2024
Retreat rates for the West Antarctic Ice Sheet (WAIS) were massive during the Early Holocene, when CO2 concentrations were low and stable (~265 ppm), dwarfing any retreat rates witnessed in the modern era. New research published in Nature Geoscience (Grieman et al., 2024) assesses the elevation of West Antarctica’s ice sheet fell by ~480 m within […]
Posted in Antarctic, Glaciers, Paleo-climatology |
By Kenneth Richard on 22. February 2024
Relative sea level change over the Holocene documents a much warmer past than today. Because it was so much warmer during the Early to Middle Holocene (~8000 to ~4000 years ago), there was significantly less water locked up on land (Greenland, Antarctica) in the form of ice sheets and glaciers. Instead, this water occupied ocean […]
Posted in Paleo-climatology, Sea Levels |
Recent Comments