By P Gosselin on 26. May 2021
Warmth led to the rise of the Roman Empire, while cooling accompanied its demise A new paper appearing in Scientific Reports titled “Persistent warm Mediterranean surface waters during the Roman period” by Margaritelli et al looks at the climate at the time of the rise and fall of the Roman Empire, and beyond. Hat-tip: Die […]
Posted in Paleo-climatology |
By P Gosselin on 3. April 2021
A new paper authored by distinguished climate researcher Nicola Scafetta and published in the journal Atmosphere titled Reconstruction of the Interannual to Millennial Scale Patterns of the Global Surface Temperature concludes that humans are only responsible for half, at most, of the recent warming. The IPCC climate models fail to properly take natural oscillations into account. […]
Posted in Models |
By Kenneth Richard on 11. February 2021
The survivable temperature thresholds for terrestrial animals in both hemispheres affirm recent millennia were much warmer with less sea ice than today. Antarctica hasn’t warmed in the last 70 years (Singh et al., 2020). The Southern Ocean surrounding Antarctica has been cooling and sea ice has been expanding since 1979 (Fan et al., 2014; Qian […]
Posted in Antarctic, Arctic, Cooling/Temperature, Glaciers, Paleo-climatology, Sea Ice |
By P Gosselin on 26. January 2021
Another paleo-climatological study reveals that the Mississippi river basin was 2°C warmer than today 700 years ago, another indication that the Medieval Warm Period (MWP) was warmer globally than today. This is bad news for the zealot backers of the man-made global warming hypothesis. Today as atmospheric CO2 concentrations climb beyond 400 ppm, climate alarmists […]
Posted in Paleo-climatology |
By Kenneth Richard on 14. January 2021
Scientists continued defying the “unprecedented” global warming narrative by publishing nearly 150 papers in 2020 that show large regions of the Earth (a) haven’t warmed in recent decades, (b) were as-warm or warmer within the last several centuries, and/or (c) were 1-7°C warmer than today just a few millennia ago. Here is the link to […]
Posted in Cooling/Temperature, Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 5. November 2020
The forcing uncertainties and lack of observational measurements in the top-to-bottom global ocean preclude an assessment that modern warmth is due to anthropogenic activities. Key points from a new paper (Gebbie, 2021): • 93% of the changes to the Earth’s energy budget, manifested as warming of the Earth system, are expressed in the global ocean. […]
Posted in Medieval Warm Period, Natural Variability, Oceans, Paleo-climatology, Tectonics/Volcanoes |
By Kenneth Richard on 1. October 2020
Today’s global ocean temperatures hover around 15°C on average. About 400 to 500 million years ago, Earth’s ocean temperatures averaged 35-40°C and atmospheric CO2 concentrations were “5-10x higher than present day values” (Henke et al., 2018). During this period, the marine biosphere thrived (Voosen et al., 2019). Image Source: Henke et al., 2018 Image Source: […]
Posted in Oceans, Paleo-climatology |
By Kenneth Richard on 21. May 2020
During the Early Holocene, when CO2 levels lingered near 260 ppm, ice core records suggest surface temperatures in Iceland were about 3°C warmer than today. Iceland’s extensive lakes and glaciers topography provides a verifiable history of the region’s paleoclimates. For example, scientists can infer summer temperatures 3°C warmer than today in Iceland to account for […]
Posted in Arctic, Paleo-climatology, Sea Ice |
By P Gosselin on 26. April 2020
Geologist Dr. Sebastian Lüning just released a video that challenges the claim that today’s warming is unusual and caused mostly by human activities. While the video’s main focus is on Germany, it presents several key points that tell us why natural factors are just as much at play, if not more. Sea surface temperature fluctuations […]
Posted in Cloud Climate Influence, Cooling/Temperature, Paleo-climatology |
By Kenneth Richard on 13. April 2020
Two new papers use tree ring proxy evidence to suggest modern European temperatures are neither unusual nor higher than they were during the Medieval Warm Period. Image Source: Esper et al. (2020) Esper et al. (2020) have produced a new temperature reconstruction for Southern Europe to complement past reconstructions for Northern and Central Europe. They […]
Posted in Hockey Team, Medieval Warm Period, Paleo-climatology |
By Kenneth Richard on 16. December 2019
Four reconstructions from the central and western High Arctic reveal July temperatures were about 1-2°C warmer than today during most of the 1st millennium and Medieval period (Tamo and Gajewski, 2019). A few years ago, a chironomid reconstruction of Boothia Peninsula in the Canadian Arctic (Fortin and Gajewski, 2016) revealed not only were today’s temperatures […]
Posted in Misc. |
By P Gosselin on 12. November 2019
The two recent dry summers seen in Europe have led to alarmists believing that the climate doomsday has arrived. But The European Institute for Climate and Energy (EIKE) looks at the past to see if this sort of thing is really unusual. ======================= German forests growing much faster today than 1000 years ago. Photo: NTZ ================= […]
Posted in Drought and Deserts, Paleo-climatology |
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