Published 6 months ago

Antarctica’s glaciers are melting from beneath, speeding sea-level rise

Glaciers in East Antarctica, specifically Denman and Scott glaciers, could lose ice faster than anticipated due to a feedback loop. Meltwater discharge triggers increased ice loss and sea-level rise as the planet warms.
The accelerated rate of planet-warming fossil fuel burning can cause the glaciers to retreat past a critical threshold 25 years earlier than projected, resulting in a sea-level rise of nearly 5 feet. The increased sea-level rise from these glaciers alone could be around 16% by 2300.
The findings emphasize the need to address subglacial melt and discharge in climate models to understand Antarctica's contribution to future sea-level rise. The melting southern continent poses an extreme risk of life-altering sea-level rise worldwide.

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Times of India

Subglacial meltwater flowing beneath Antarctic glaciers could accelerate retreat, study finds

Researchers have found that subglacial discharge, or meltwater flowing out to sea from beneath Antarctic glaciers, could be causing glaciers to lose ice at a faster rate. This discharge raises the glaciers' contribution to sea-level rise by 15.7% by the year 2300. Current models do not take into account this mechanism, which suggests that current projections underestimate global sea-level rise. The study highlights the importance of reducing gre…

6 months ago·India

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CNN

A hidden feedback loop under Antarctica’s glaciers could accelerate sea level rise, scientists find

Glaciers in East Antarctica will lose more ice in the future than previously thought, scientists reported Friday, in an alarming feedback loop where glacier meltwater is triggering even more ice loss as the planet warms.

6 months ago·Atlanta, United States

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KRDO

A hidden feedback loop under Antarctica’s glaciers could accelerate sea level rise, scientists find

By Rachel Ramirez, CNN (CNN) — Glaciers in East Antarctica could lose ice faster in the future than previously thought, scientists reported Friday, in an alarming feedback loop where glacier meltwater is triggering even more ice loss and sea level rise as the planet warms. The findings come less than a week after scientists reported rapid melting of West Antarctica’s ice shelves may now be unavoidable, thanks to human-caused global warming. Toge…

6 months ago·Colorado Springs, United States

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The Hill

Antarctica’s glaciers are melting from beneath, speeding sea-level rise

Hidden rivers of meltwater are decaying Antarctica’s glaciers from beneath, a new study has found — meaning sea levels are likely rising faster than scientists had feared. The faster melting rates are also changing the balance of freshwater and saltwater in the oceans, affecting both ocean circulation and global weather in unknown ways, according to findings published Friday in…

6 months ago·Washington, United States

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npr

Antarctica is melting and we all need to adapt, a trio of climate analyses show

West Antarctica is headed for decades of rapid melting no matter how quickly humans cut greenhouse gas emissions, and 2023 shattered records for missing sea ice around the continent.

6 months ago·Washington, United States

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Phys.org

Meltwater flowing beneath Antarctic glaciers may be accelerating their retreat

A new Antarctic ice sheet modeling study from scientists at UC San Diego's Scripps Institution of Oceanography suggests that meltwater flowing out to sea from beneath Antarctic glaciers is making them lose ice faster.

6 months ago·United Kingdom

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