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By Kenneth Richard on 20. November 2023
Millennial-scale Arctic sea ice reconstructions do not corroborate alarmist claims of unprecedented sea ice losses in modern times. Using sea ice biomarker proxy (IP25), scientists (Kolling et al., 2023) have determined that the sea ice extent in the Labrador Sea was nearly absent throughout the year (close to 0.0 μg/gTOC) for much of the last […]
Posted in Arctic, Paleo-climatology, Sea Ice |
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 13. November 2023
Yet another region of the world fails to cooperate with “global” warming instructions. New research (Zhang et al., 2023) finds the sea ice extent has undergone an overall increasing trend from 2005-2021 in the Sea of Japan, Yellow Sea, and Bohai Sea. “Over the past 17 years, the maximum sea ice extent in the marginal […]
Posted in Cooling/Temperature, Paleo-climatology, Sea Ice |
By P Gosselin on 11. November 2023
Climate tipping points are much more fantasy than science Austrian AUF 1 has posted posted a video interview with prominent German geologist and Sahara expert Dr. Stefan Kröpelin, Sahara has been shrinking over the past decades. Image: NASA Dr. Kröpelin is an award-wining geologist and climate researcher at the University of Cologne and specializes in studying […]
Posted in Drought and Deserts, Paleo-climatology |
By Kenneth Richard on 26. October 2023
Paleoclimate studies continue to undermine claims of “unprecedented” global warming in the modern era. A new temperature reconstruction (Oliveira Silva Muraja et al., 2023) for Brazil reveals there has been no net modern warming since the 1400s. Image Source: Oliveira Silva Muraja et al., 2023 Another new temperature reconstruction (Yue et al., 2023) indicates there […]
Posted in Paleo-climatology
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
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