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By Kenneth Richard on 4. April 2024
The sea level rise experienced in recent decades was supposed to lead to shrinking shorelines and inundated coasts. Instead, satellite observations reveal the globe’s island coasts expanded seaward (net) by 402 km² since 2000. In a new study, over 13,000 islands were assessed for coastal change over the last three decades (1990-2020). Only 12% of […]
Posted in Alarmism, Oceans, Sea Levels |
By Kenneth Richard on 28. March 2024
Modern relative sea levels are near the lowest in the last 7,000 years. Two studies, independently published, identify Mid-Holocene sea levels in northern Norway (north of the Arctic circle) as 7 to 9 meters higher than today before declining to the present (Balascio et al., 2024, Nielsen et al., 2024). This region of the Arctic […]
Posted in Paleo-climatology, Sea Levels |
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 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
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 14. September 2023
A stable current global sea level record has apparently been “corrected” to show accelerated rise since the 1990s. A few months ago we highlighted a new study indicating satellite observations reveal Antarctic-wide ice shelves gained +661 Gt of mass from 2009 to 2019. Instead of reporting on these actual observations, agenda-driven scientists have long been […]
Posted in Models, Sea Levels |
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 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 |
By Kenneth Richard on 3. April 2023
Contrary to alarmist claims, the seas have been retreating and the coasts have been expanding seaward along the coasts of southern India since the early 1800s. Korkai was a port city, capital, and the principal trade center for India’s Pandya Kingdom from the 6th to 9th centuries CE. While Korkai was situated on the sea […]
Posted in Little Ice Age, Paleo-climatology, Sea Levels |
By Kenneth Richard on 9. March 2023
Two new studies indicate centennial-scale sea level rise rates ranged up to 29-45 mm/yr during the period between 14,500 and 8000 years ago, when CO2 levels were 250 to 265 ppm. Modern global sea level rise rates have been reported to be 1.56 mm/yr for 1900-2018, decreasing slightly to 1.3 to 1.5 mm/yr during 1958-2014 […]
Posted in Sea Levels |
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