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glaciers & ice sheets

An artist’s rendering of Earth covered in ice
Posted inNews

How Animals May Have Conquered Snowball Earth

by Chris Baraniuk 9 January 202323 January 2023

We know there were animals during Earth’s chilliest era. The question is, What did they look like?

Photo of a polar bear and two cubs traversing a field of snow and ice
Posted inNews

Glacial Ice Offers Polar Bears a Precarious Climate Refuge

by Elise Cutts 9 December 20229 December 2022

An isolated polar bear population in southeastern Greenland survives in fjords, despite spotty sea ice. But this pocket of bears is not a sign of how the species could be saved.

Photo of blue ice wall with pieces of ice falling into water in the foreground, causing the water to splash
Posted inNews

Underwater Sounds Help Reveal Extent of Glacial Calving

by Elise Overgaard 9 December 20229 December 2022

If a glacier calves into the Arctic Ocean, does it make a sound? Some scientists say yes and have devised a clever way to use those sounds to calculate the size of the fallen ice chunks.

A yellow submarine-shaped autonomous underwater vehicle hangs from a cable over the side of ship as technicians and scientists look on.
Posted inResearch Spotlights

Exploring a Warm Water Inflow Below an Antarctic Ice Shelf

by Sarah Derouin 5 December 20225 December 2022

Researchers guided an autonomous underwater submarine to capture the first direct observations of a warm water current flowing in below the Filchner-Ronne Ice Shelf in Antarctica.

Aerial view of sea ice meeting open water with snowy coastal hills in the background
Posted inResearch Spotlights

Dissecting Ocean Dynamics in Greenland Fjords

by Aaron Sidder 18 November 2022

Researchers explored the patterns and drivers of variability in fjords linking the Greenland Ice Sheet and the Atlantic Ocean using numerical simulations and in situ observations.

Graph showing the relationship between global-mean surface and rate of global-mean sea-level rise.
Posted inEditors' Highlights

Surface Temperature Sets the Pace of Sea Level Rise

by Christopher Piecuch 31 October 202227 October 2022

Reining in global mean sea level rise from land-ice wastage and ocean thermal expansion requires reducing global mean surface temperatures to near-preindustrial values.

Satellite view of an ice shelf and sea ice
Posted inResearch Spotlights

A Close Look at Melting Below Antarctica’s Largest Ice Shelf

by Rachel Fritts 28 October 202228 October 2022

Radar data reveal where, when, and how fast the base of the Filchner-Ronne Ice Shelf has been losing mass in recent years.

The research vessel Nathaniel B. Palmer studies the Thwaites Glacier in 2019.
Posted inNews

Seafloor Reveals a Period of Rapid Retreat for Thwaites Glacier

by Javier Barbuzano 13 October 202225 January 2023

New high-resolution seafloor imagery shows a series of delicate ridges produced by the glacier’s front as it bobbed daily with the tides, revealing a recent period of rapid retreat.New high-resolution seafloor imagery shows a series of delicate ridges produced by the glacier’s front as it bobbed daily with the tides, revealing a recent period of rapid retreat.

Research vessel overlooking a glacier
Posted inNews

Arctic Glaciers, a Peruvian Volcano, and a Russian Famine

by Santiago Flórez 11 October 202228 October 2022

A team studying Russian glaciers found evidence that a volcanic eruption in southern Peru changed the planet’s climate at the beginning of the 17th century.

Satellite photo of a massive ice shelf with a couple of large cracks
Posted inResearch Spotlights

Melting Below the Pine Island Ice Shelf Minds the Gap

by Sarah Derouin 3 October 20223 October 2022

New research shows that increased calving from West Antarctica’s Pine Island Ice Shelf will likely drive increased circulation of warm water—and melting—below the ice.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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