By Kenneth Richard on 8. August 2024
“Today there is no evidence that B. Gaini lives in permanently frozen lakes.” – Roman et al., 2024 Image Source: Public Domain Image According to a new study (Roman et al., 2024), fairy shrimp Branchinecta gaini occupied the Antarctic Peninsula’s seasonally ice-free Monolithic Lake throughout much of the last 2000 years. There were “longer ice-free […]
Posted in Antarctic, Paleo-climatology |
By P Gosselin on 27. July 2024
The Chinese Academy of Sciences found that the Antarctic cold spells shattered records amid global heat waves in late winter 2023, something we never heard from the mainstream media. Image: NASA (public domain) In report appearing in the online PhysOrg journal, 2023 “brought an unexpected twist with extreme cold events in Antarctica” – according to […]
Posted in Antarctic |
By Kenneth Richard on 16. May 2024
The phenomenon of increasing the concentration of greenhouse gases (water vapor, carbon dioxide, methane) is assumed to lead to sharply rising temperatures in polar regions, or “polar amplification.” As it turns out, it doesn’t. Per a new radiative forcing model (Notholt et al., 2024), increasing CO2 from pre-industrial to present levels (278 to 400 ppm) […]
Posted in Antarctic, Arctic, Climate Sensitivity |
By P Gosselin on 8. May 2024
German weather site wetteronline.de reported “extreme winter cold” in Antarctica as the mercury plummeted to “almost minus 80 degrees Celsius” on April 29, 2024. Image: NASA And it’s not even winter yet. Hat-tip: Heinz “On April 29, almost minus 80 degrees were measured at the Russian Vostok research station. Such extreme cold is rarely reached […]
Posted in Antarctic |
By Kenneth Richard on 15. April 2024
More evidence emerges that Antarctica has undergone rapid glacier and sea ice expansion in recent centuries, in line with the long-term and recent Antarctic cooling trend. West Antarctica’s mean annual surface temperatures cooled by more than -1.8°C (-0.93°C per decade) from 1999-2018 (Zhang et al., 2023). Not just West Antarctica, but most of the continent […]
Posted in Antarctic, Cooling/Temperature, Glaciers |
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 15. January 2024
“Negative TOA [top of atmosphere] forcing of CO2 increase also happens outside of Antarctica. The Arctic sometimes exhibits strong negative CO2 forcing. This phenomenon even occurs in the tropics and mid-latitudes…” – Chen et al., 2024 It has previously been reported that as CO2 increases from 380 ppm to 1000 ppm, the CO2 greenhouse effect […]
Posted in Antarctic, Arctic, Climate Sensitivity, CO2 and GHG |
By P Gosselin on 3. January 2024
Four new studies in prestigious journals show Antarctic ice shelf as stable as ever. Hat-tip: EIKE Klimaschau Andreasen et al (2023) finds net gain A study by Julia R. Andreasen and colleagues looked at the changes in ice shelves, Antarctic-wide, using MODIS (Moderate Resolution Imaging Spectroradiometer) satellite data from 2009 to 2019. Image: Andreasen et […]
Posted in Antarctic |
By Kenneth Richard on 16. November 2023
The timing of the dramatic Antarctic sea ice decline during the last deglaciation suggests solar forcing and sea ice retreat “instigated” century-scale climate warming and atmospheric CO2 change. This would appear to challenge the perception CO2 plays a causal role in glacial-interglacial sea ice and climate changes. From ~21,000 to 19,500 years ago, when CO2 […]
Posted in Antarctic, Paleo-climatology, Sea Ice |
By Kenneth Richard on 6. November 2023
Significant 21st century cooling in the Central Pacific, Eastern Pacific, and nearly all of Antarctica “implies substantial uncertainties in future temperature projections of CMIP6 models.” – Zhang et al., 2023 New research indicates West Antarctica’s mean annual surface temperatures cooled by more than -1.8°C (-0.93°C per decade) from 1999-2018. In spring, the West Antarctic Ice […]
Posted in Antarctic, Cooling/Temperature |
By P Gosselin on 2. August 2023
Alarmists have claimed lately that global warming has hit Antarctica, finally. But that hasn’t been the case at all at the Japanese Showa station. Today we present a a temperature chart of the Japanese Antarctic Showa station, located on the East Ongul Island in Queen Maud Land, Antarctica. The temperature trend at Syowa, also called Showa, has been […]
Posted in Antarctic |
By Kenneth Richard on 13. July 2023
There is a “direct link” between the location of origin for recent ice melt in Antarctica and geothermal heat flow. High geothermal heat flow (GHF) is mostly why Antarctic ice melts, not “atmospheric and ocean forcing,” which is what has been commonly thought until recently (Haeger et al., 2023). Even though atmospheric CO2 is well-mixed, […]
Posted in Antarctic, CO2 and GHG, Glaciers |
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