Antarctica News - SciTechDaily

Antarctica’s Ice Deception: New Study Reveals Surprising Thinness of Ice Shelves

Ohio State University — Wed, 06 Dec 2023 01:40:07 +0000

A new effort aims to more accurately measure the loss of ice shelves in Antarctica. Global ice dams are weakening due to rising temperatures, leading...

Unstable Ice: Antarctic Glacier’s Sudden Collapse Rattles Scientists

University of Leeds — Tue, 05 Dec 2023 05:05:42 +0000

Scientists have found that even seemingly stable glaciers in the Antarctic can “switch very rapidly” and lose large quantities of ice as a result of...

Sea Level Secrets Revealed: How Ancient Corals Illuminate Future Threats

Australian National University — Mon, 20 Nov 2023 11:37:30 +0000

An international group of researchers, utilizing historical data gathered from various locations in Australia, has presented the most precise estimate so far of the historical...

Chilling Reality: An Unseen Factor Is Accelerating Antarctic Glacier Meltdown

University of California - San Diego — Sat, 28 Oct 2023 13:09:01 +0000

Simulations showed that meltwater flowing beneath Antarctic glaciers accelerated sea-level rise by 15% by 2300, suggesting it should be factored into future projections. A new...

Chilling Revelations: Ancient Landscape Discovered Beneath East Antarctic Ice Sheet

Durham University — Wed, 25 Oct 2023 08:42:19 +0000

Scientists discovered an ancient river-formed landscape beneath the Antarctic ice, offering valuable insights into the ice sheet’s long-term stability and reactions to climate shifts. A...

“We’ve Lost Control” – West Antarctic Ice Sheet’s Unavoidable Meltdown

British Antarctic Survey — Tue, 24 Oct 2023 13:18:09 +0000

The West Antarctic Ice Sheet’s melting rate is projected to rise significantly this century, irrespective of fossil fuel cutbacks. While the future looks challenging, reducing...

Polar Contrasts: Greenland and Antarctica’s Divergent Ice Melt Patterns

University of California - Irvine — Tue, 24 Oct 2023 09:44:37 +0000

UC Irvine-led researchers identify contributions of downslope winds and ozone layer. Surface ice in Greenland has been melting at an increasing rate in recent decades,...

In Depth: The Unsettling Findings Beneath Antarctica’s Thinning Ice Sheets

Georgia Institute of Technology — Mon, 23 Oct 2023 22:44:18 +0000

A recent theory illustrates the mechanism by which water underneath glaciers may surge — creating a dangerous feedback cycle. Two Georgia Tech researchers, Alex Robel...

Antarctica’s Alarming Ice Retreat: A 25-Year Study Reveals Significant Losses

University of Leeds — Sun, 22 Oct 2023 12:19:04 +0000

Over 40 percent of Antarctica’s ice shelves reduced in volume over 25 years. Thinning ice shelves release a vast quantity of freshwater into the oceans...

Brrr-eaking Milestones: Antarctic Sea Ice Sees Record Low Growth

Sally Younger. NASA Earth Observatory — Sun, 01 Oct 2023 09:22:00 +0000

Satellite data shows that Antarctic sea ice reached its lowest maximum extent on record on September 10, 2023. Antarctic sea ice reached its lowest maximum...

Could We Artificially Dim the Sun Prevent Global Warming?

University of Bern — Wed, 20 Sep 2023 13:54:32 +0000

Using geoengineering techniques, the climate could theoretically be artificially influenced and cooled. Scientists from Bern have now explored the feasibility of halting the melting of...

Brunt Ice Shelf in Antarctica Speeds Up After Calving of Giant Iceberg

British Antarctic Survey — Fri, 15 Sep 2023 09:08:21 +0000

Following the calving of the A-81 iceberg at the end of January 2023, the Brunt Ice Shelf in Antarctica is moving faster than before. It...

Antarctic Sea Ice Crisis: Emperor Penguin Colonies Suffer Catastrophic Breeding Failure

British Antarctic Survey — Wed, 30 Aug 2023 05:16:18 +0000

Emperor penguin colonies experienced unprecedented breeding failure in a region of Antarctica where there was total sea ice loss in 2022. The discovery supports predictions...

“Great Cut” Unveiled – Mississippi Mud Reveals Secrets of Antarctica’s Ancient Expansion

University of Birmingham — Sun, 27 Aug 2023 23:07:02 +0000

Clues regarding the development of massive ice layers in Antarctica have been uncovered in mud samples taken from Mississippi, shedding light on a major climate...

On Thinning Ice: Emperor Penguins Face Breeding Meltdown in Antarctica

Scientific Reports — Thu, 24 Aug 2023 15:00:53 +0000

Due to unprecedented sea ice loss from climate change, four out of five emperor penguin colonies in Antarctica faced significant breeding failure in 2022. Four...

“Uncharted Territory” – Exceptionally Low Antarctic Sea Ice Observed by NASA

Emily Cassidy, NASA Earth Observatory — Tue, 15 Aug 2023 10:47:27 +0000

The extent of winter sea ice surrounding Antarctica is in uncharted territory in the satellite record. Antarctica is experiencing the depths of winter, yet the...

Antarctica’s Alarm Bells: Scientists Warn of Escalating Extreme Events

University of Exeter — Thu, 10 Aug 2023 08:24:22 +0000

Researchers suggest that Antarctica will almost certainly experience more frequent and intense extreme events, such as ocean heatwaves and ice loss. As efforts intensify to...

We Asked a NASA Scientist: Is Polar Ice Melting?

NASA — Sat, 17 Jun 2023 13:17:44 +0000

Is polar ice melting? The simple and straightforward answer is yes. It is, in fact, melting. But it’s a bit more complicated than that. You...

Scientists Have Mapped the Ground Beneath Antarctica’s Most Vulnerable Glacier for the First Time

Swansea University — Sat, 10 Jun 2023 08:20:04 +0000

For the first time, a team including an expert from Swansea has charted the ground beneath Antarctica’s most at-risk glacier, providing vital insights into its...

Chilling Secrets: Rocks Beneath Antarctic Ice Sheet Reveal Surprising Past

British Antarctic Survey — Thu, 01 Jun 2023 19:27:05 +0000

Researchers from the International Thwaites Glacier Collaboration found that the West Antarctic Ice Sheet had been thinner in the past and had regrown, suggesting that...

Antarctica’s Massive Underwater Landslides – Which Could Generate Giant Tsunamis – Caused by Past Climate Change

University of Plymouth — Thu, 18 May 2023 09:00:20 +0000

Scientists have identified weak, biologically-rich sediments beneath Antarctica’s seafloor as the cause of giant underwater landslides that could generate far-reaching tsunamis. These sediments formed in...

Climate Change Could Be Catastrophic to Antarctica’s Major Ice Sheets – But the Ice Has Melted Before

Norwegian University of Science and Technology — Mon, 15 May 2023 11:12:59 +0000

The potential consequences of climate change-induced melting of Antarctica’s major ice sheets would be catastrophic. However, at least one ice sheet in East Antarctica experienced...

Ice Age Plot Twist: Greenland Unfazed by Titanic Iceberg Discharges

Oregon State University — Mon, 24 Apr 2023 15:00:00 +0000

Massive iceberg discharges during the last ice age had no impact on nearby Greenland, raising new questions about climate dynamics. Heinrich Events, massive iceberg discharges...

Decade of the Worst: Polar Ice Sheet Melting Shatters Records

Northumbria University — Thu, 20 Apr 2023 06:00:35 +0000

The past decade has seen the worst years for polar ice sheet melting, with 2019 being the record year. Ice sheet melting now accounts for...