Paleo-climatology

New Study: Modern Sea Ice Extent Is Nearly The Highest In 9000 Years Across the Arctic

New Study: Modern Sea Ice Extent Is Nearly The Highest In 9000 Years Across the Arctic

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 […]

New Study: Antarctic Sea Ice Completed Half Its Deglacial Retreat 1000s Of Years Before CO2 Began Rising

New Study: Antarctic Sea Ice Completed Half Its Deglacial Retreat 1000s Of Years Before CO2 Began Rising

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 […]

New Study: East Asian Sea Ice Extent Increasing Since 2005 ... Region Is Now Colder Than 1700s-1800s

New Study: East Asian Sea Ice Extent Increasing Since 2005 … Region Is Now Colder Than 1700s-1800s

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 […]

Sahara Expert Says Desert Shrinking, Calls Alarmist Tipping Points "Complete Nonsense"

Sahara Expert Says Desert Shrinking, Calls Alarmist Tipping Points “Complete Nonsense”

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 […]

New Reconstructions From Brazil, China, Europe Indicate No Net Warming In Recent Centuries

New Reconstructions From Brazil, China, Europe Indicate No Net Warming In Recent Centuries

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 […]

New Research: Relative Sea Level Along The Coasts Of Japan Has Fallen Nearly A Meter Since The 1800s

New Research: Relative Sea Level Along The Coasts Of Japan Has Fallen Nearly A Meter Since The 1800s

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 […]

4 More Temperature Reconstructions Fail To Support The 'Unprecedented' Global Warming Narrative

4 More Temperature Reconstructions Fail To Support The ‘Unprecedented’ Global Warming Narrative

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. […]

New Study: People Distressed, Anxious About Climate Have Less 'Climate-Specific Knowledge'

New Study: People Distressed, Anxious About Climate Have Less ‘Climate-Specific Knowledge’

“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”) […]

5 New Studies Indicate There Has Been No Net Warming Since The 1700s

5 New Studies Indicate There Has Been No Net Warming Since The 1700s

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 […]

Two More Studies Indicate Mid-Holocene Sea Levels Were 2-6 Meters Higher Than Present

Two More Studies Indicate Mid-Holocene Sea Levels Were 2-6 Meters Higher Than Present

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. […]

New Study: Modern Central Asia Climate Halfway Between Medieval Warmth And Little Ice Age

New Study: Modern Central Asia Climate Halfway Between Medieval Warmth And Little Ice Age

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 […]

New Study: Neither Global Warming Or CO2 Radiative Forcing Were A Cause Of Past Mass Extinctions

New Study: Neither Global Warming Or CO2 Radiative Forcing Were A Cause Of Past Mass Extinctions

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 […]

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