Newly digitized vintage film has doubled how far back scientists can peer into the history of underground ice in Antarctica, and revealed that an ice shelf on Thwaites Glacier in West Antarctica is being thawed by a warming ...
Earth Sciences
Sep 2, 2019
2
272
For much of the 65,000 years of Australia's human history, the now-submerged northwest continental shelf connected the Kimberley and western Arnhem Land. This vast, habitable realm covered nearly 390,000 square kilometers, ...
Archaeology
Dec 23, 2023
0
133
A chunk of ice bigger than the US state of Delaware is hanging by a thread from the West Antarctic ice shelf, satellite images revealed Wednesday.
Earth Sciences
Jul 5, 2017
8
427
In the first such continent-wide survey, scientists have found extensive drainages of meltwater flowing over parts of Antarctica's ice during the brief summer. Researchers already knew such features existed, but assumed they ...
Earth Sciences
Apr 19, 2017
0
1486
Antarctic ice shelves have experienced only minor changes in surface melt rates over the past four decades, unlike the rapid increase in surface melt experienced by Greenland's glaciers during the same time period, according ...
Earth Sciences
Jun 21, 2023
0
188
Four dozen Antarctic ice shelves have shrunk by at least 30% since 1997 and 28 of those have lost more than half of their ice in that time, reports a new study that surveyed these crucial "gatekeepers'' between the frozen ...
Environment
Oct 15, 2023
12
208
In Antarctica, heavy glaciers are always on the move. Conveyor belts of ice, known as ice streams, are the corridors of faster flow that carry most of the vast glaciers' ice and sediment debris out toward the ocean.
Earth Sciences
Mar 29, 2024
0
265
High in a narrow, seawater-filled crevasse in the base of Antarctica's largest ice shelf, cameras on the remotely operated Icefin underwater vehicle relayed a sudden change in scenery.
Earth Sciences
Mar 2, 2023
0
172
Recent satellite images reveal a new 100-square-mile iceberg emerging from Antarctica's Pine Island Glacier. The calving event did not come as a complete surprise, but is a troubling sign with regards to future sea level ...
Earth Sciences
Sep 27, 2017
1
171
The ROSETTA-Ice project, a three-year, multi-institutional data collection survey of Antarctic ice, has assembled an unprecedented view of the Ross Ice Shelf, its structure and how it has been changing over time. In a study ...
Earth Sciences
May 27, 2019
0
500
