New research on Antarctica, including the first map of iceberg calving, doubles the previous estimates of loss from ice shelves and details how the continent is changing. NASA: The greatest uncertainty in forecasting global sea level rise is how Antarctica’s ice loss will accelerate as the climate warms. Two studies published Aug. 10 and led…
Recent published research shows the danger of massive, potentially irreversible, global sea-level rise within the next couple of centuries should temperatures overshoot 2°C. Perhaps most sobering, this loss may become rapid and permanent, with no halt in ice loss even should CO2 concentrations return t pre-industrial levels; and rates approaching 5 cm/year by 2150, and…
At the fall 2021 meeting of the American Geophysical Union on 13 December, a presentation on the latest for the Thwaites Glacier (also dubbed the Doomsday Glacier) highlighted processes at the ice shelf of the glacier, which will likely result in dramatic changes within 10 years. Meaning, acceleration of ice discharge into the Ocean, and…
We interviewed Eric Rignot, Donald Bren Professor and Chancellor Professor of Earth system science at the University of California, Irvine and Senior Research Scientist for the Radar Science and Engineering Section at NASA’s Jet Propulsion Laboratory. The 6th IPCC Report and Sea Level Rise Chris Machens: Hello Eric, back in 2015 I’ve asked you about…
Ice shelves buttress glaciers – a new mechanism involving rift dynamics suggests ice shelfs could retreat faster than previously modeled. SciTechDaily: “The thinning of the ice melange that glues together large segments of floating ice shelves is another way climate change can cause rapid retreat of Antarctica’s ice shelves,” said co-author Eric Rignot, UCI professor…
The study, “Interacting tipping elements increase risk of climate domino effects under global warming” by Nico Wunderling, Jonathan F. Donges, Jürgen Kurths, and Ricarda Winkelmann from the Potsdam Institute finds potential severe consequences from continued climate change. The Guardian has a study breakdown, which can be accessed here. Analysis shows significant risk of cascading events even at 2C…
CarbonBrief recently published a guest article by Robert M. DeConto, Pamela Pearson, and David Pollard, called Overshooting 2C risks rapid and unstoppable sea level rise from Antarctica. Here is now a text-to-speech conversation for people who like to listen to it. Visit Overshooting 2C risks rapid and unstoppable sea level rise from Antarctica to follow…
Significant changes have taken place on Denman Glacier and Shackleton Ice Shelf. The floating section of the glacier experiences vigorous ice melt in contact with the ocean, which suggests the presence of Circumpolar Deep Water. However, there is no historical oceanographic data near the glacier. https://www.pnas.org/content/116/4/1095 Denman Glacier, located in East Antarctica retreated about 5…
Climate change and seismicity, read the study excerpt, Enhanced Seismic Activity Observed in Alaska Due To Climate Change. Sources Study 2018: Evaluating the relationship between climate change and volcanism Study 2018: Enhanced Seismic Activity Observed in Alaska Due To Climate Change Bill McGuire 2016, Waking the Climate Giant Bill McGuire 2014, Climate State Interview USGS:…