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
ICIMOD, April 24, 2026 2026 marks the fourth consecutive year of below-average snow conditions in…
Ocean Science, 20 Apr 2026 Global warming and increased freshwater input from melting ice are…
Science, 23 Apr 2026 Specially-adapted species living in glacier regions face rapid snowpack and ice…
Science Advances, 24 Apr 2026 Observations from the grounding zone beneath the Ross Ice Shelf…
The Hindu Kush Himalaya faces rising climate extremes that threaten mountain communities, demanding a shift…
Philosophical Transactions of the Royal Society, 23 April 2026 Observations suggest we are currently tracking…