Dr. Paul Bierman, Professor of Environmental Science at the University of Vermont, summarized his recent paper on ancient soil remains from an ice core taken at Summit Station, at nearly the highest point of the ice sheet (3 kilometers of ice). Fossils in the sediment reveal that this site was ice-free in Earth’s not-so-distant past, meaning that at least 90% of the ice sheet had melted. These findings raise the alarm that Greenland’s ice, which holds about 7 meters total sea-level rise, almost completely disappeared under past climate conditions with CO2 concentrations well below current levels.
Hela uppsatsen: https://www.pnas.org/doi/10.1073/pnas.2407465121
Video recording: https://www.youtube.com/watch?v=VAIG8-R4hWA
PNAS, 6 July 2026 Antarctic ice shelves act as natural barriers that slow the flow…
Nature Climate Change, 10 June 2026 Human-driven sea-level rise is transforming once-rare “extreme sea-level events”…
Advances in Climate Change Research, June 2026 Extratropical cyclones – large weather systems that transport…
Ocean Science, 30 June 2026 The North Sea has warmed about twice as fast as…
Environmental Research Climate, 3 July 2026 Glaciers in the Western Himalayas store vast freshwater reserves…
Climate Dynamics, 28 May 2026 Declining sea ice in the Arctic’s Barents-Kara Sea may be…