By Kenneth Richard on 25. September 2023
More evidence emerges suggesting modern relative sea level (RSL) is among the lowest in several millennia. About 7000 years ago coasts were rapidly submerged beneath the sea at rates of up to 22 meters per year. Ancient shoreline elevation evidence indicates RSL along the coasts of Central Japan has fallen ~0.82 m since the 1800s […]
Posted in Paleo-climatology, Sea Levels |
By Kenneth Richard on 21. August 2023
New studies find recent non-warming and/or a warmer Medieval Warm Period. From 1785-2015 (231 years), the warmest 21-year period in India’s Himalayan region occurred from 1890-1910 (Rastogi et al., 2023). The years spanning 1995-2015 were the 4th warmest and 1946-1966 was the 2nd warmest period. So, overall, the region has cooled slightly since 1890. […]
Posted in Hockey Team, Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 17. August 2023
“The degree of one’s emotions varies inversely with one’s knowledge of the facts, the less you know the hotter you get.” – Bertrand Russell Per a new study, people who are less knowledgeable about the climate and environment are more likely to experience climate change anxiety (e.g., “I find myself crying because of climate change”) […]
Posted in Oceans, Paleo-climatology, Scepticism |
By Kenneth Richard on 10. August 2023
Proxy temperature records calibrated to closely align with current instrumental temperatures undermine the current “global boiling” narrative when extended to the 18th century. Per a new study, maximum latewood density (MXD) tree-ring data have been observed to strongly correlate (r=0.77) with the modern (1959-2016) maximum (July-Aug.) instrumental temperature record (Li et al., 2023). In other […]
Posted in Cooling/Temperature, Hockey Team, Paleo-climatology |
By Kenneth Richard on 31. July 2023
The belief that modern sea levels are unprecedentedly high takes another hit. In southern South America sea levels were ~6 meters higher than today from 8000-6000 years ago, when CO2 hovered around 265 ppm but it was much warmer with less ice. Sea levels then gradually fell to present levels, the lowest in 8000 years. […]
Posted in Paleo-climatology, Sea Levels
By Kenneth Richard on 27. July 2023
The mean annual temperature was 2-3°C warmer than present during the Holocene Thermal Maximum in arid central Asia. Over the last few millennia, Silk Road human civilizations (e.g., Sui, Tang, Ming, Yuan Dynasties) flourished during warm periods and declined during cool periods (Ding et al., 2023). The modern hydroclimate in this region does not stand […]
Posted in Little Ice Age, Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 10. July 2023
Over the last 210 million years [Myr], (a) CO2 falls as temperatures rise (negative correlation, r = -0.76), (b) mass extinctions occur 4.08 Myr after CO2 peaks, and (c) global warming/CO2 radiative forcing “did not cause extinction of biodiversity.” A new study has been published in Earth’s Future journal that supplements a 2017 analysis of […]
Posted in Climate Sensitivity, CO2 and GHG, Paleo-climatology
By Kenneth Richard on 6. July 2023
A new study identifies a major correlation flaw in paleoclimate research. The “missing” correlations are more common than correlations. In the past we have identified major contradictions in the widely-accepted contention that the entire Earth freezes its way into glacial climates that cyclically last roughly 100,000 years, interrupted by ~10,000-year interglacials. This 100,000-year glacial-interglacial cycle […]
Posted in Paleo-climatology |
By Kenneth Richard on 3. July 2023
Per a new study, million-year variations in cosmic rays (CR) modulating cloud cover, which, in turn, drives variations in incident solar radiation on short- and long-term timescales, is the dominant cause of million-year climate variations, explaining all 7 Ice Age epochs over the Phanerozoic. In contrast, declining CO2 and rising solar luminosity over the last […]
Posted in Climate Sensitivity, Cloud Climate Influence, Paleo-climatology |
By Kenneth Richard on 29. June 2023
“During the Holocene, African tropical and subtropical areas experienced extreme climatic variations.” – Yacoub et al., 2023 From ~10,000 to 5000 years ago the modern hyperarid central Sahara was green and teeming with an abundance of lakes, tropical trees, grasslands, and animal species. […]
Posted in Drought and Deserts, Paleo-climatology |
By Kenneth Richard on 26. June 2023
The belief that modern sea levels and sea level change rates are unprecedentedly high takes another hit. Per a new study, sea levels were ~9.5 m higher than today about 8000 years ago (White Sea, northwestern Russia), then fell to ~7 m higher than today by around 4000 years ago. From that point in the […]
Posted in Paleo-climatology, Sea Ice, Sea Levels |
By Kenneth Richard on 8. June 2023
Both the history of the Holocene as well as trends from recent decades continue to undermine claims of unprecedented sea level or coastal changes operating in tandem with rising CO2 concentrations. Per a new published study (Martins et al., 2023), during the Mid-Holocene (~7000 to ~4000 years ago), when CO2 was a “safe” ~265 ppm, […]
Posted in Paleo-climatology, Sea Levels |
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