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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 |
By Kenneth Richard on 15. February 2024
Scientists have found evidence that the coastal land area grew (prograded) by 120 meters from 1900 to 1985 at a study site in central Denmark. Per a new study, relative sea levels (RSL) in central Denmark were “~4.5 m higher than present between c. 6.6 and 5.9 ka ago.” After this highstand, RSL declined towards […]
Posted in Paleo-climatology, Sea Levels |
By Kenneth Richard on 5. February 2024
In 2023, hundreds of 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. There are significant limitations and uncertainties inherent […]
Posted in Climate Sensitivity, Natural Variability, Paleo-climatology, Scepticism, Uncertainty Error
By Kenneth Richard on 1. January 2024
Arctic regions with 6+ months of sea ice coverage today were ice-free nearly year-round 9,000 to 5,000 years ago (2°C warmer) and 130,000 to 115,000 years ago (7-8°C warmer). And yet polar bears survived these periods. Per a new study, today’s Scandinavian Arctic climate is so cold it is actually “comparable” to that of the […]
Posted in Arctic, Paleo-climatology, Sea Ice |
By Kenneth Richard on 28. December 2023
According to a new study, eastern Mediterranean summer temperatures were 1.5°C to 3°C “greater than the present” from about 11,000 to 7,000 years ago, when CO2 levels were approximately 265 ppm. Then the temperatures “followed a gradual decline towards present-day conditions”. “The MTWA also showed an increasing trend from 9 ka and reached a maximum of […]
Posted in Paleo-climatology
By Kenneth Richard on 21. December 2023
Warmer sea surface temperatures are associated with coral growth, not decline. According to a new study, coral growth was slow during the ~1°C colder Little Ice Age (LIA), but grew rapidly as sea surface temperatures (SSTs) warmed after 1850. Warmth is associated with coral growth, whereas colder SSTs are linked to growth rate decline. “The […]
Posted in Coral Reefs, Little Ice Age, Paleo-climatology |
By Kenneth Richard on 12. December 2023
Comprehensive data analysis shows relative sea levels were anywhere from 1 to 7 meters (~3.9 m) higher than present throughout the Mid-Holocene at 15 of 16 assessed sites across Southeast Asia. A new study (Li et al., 2023) compiles highstand records from sites spanning Thailand, Vietnam, Singapore, Malaysia, Borneo, Sunda Shelf, Makassar Strait…and indicates that […]
Posted in Paleo-climatology, Sea Levels
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