No quick fix to reverse ‘astonishing’ Antarctic sea ice loss: Scientists
1 year, 5 months ago

No quick fix to reverse ‘astonishing’ Antarctic sea ice loss: Scientists

Al Jazeera  

This year’s sea ice minimum is 20 percent lower than the average over the last 40 years, researchers say. There’s no quick fix to replacing this ice,” said Caroline Holmes, polar climate scientist at the British Antarctic Survey and one of the study’s co-authors. This year’s sea ice minimum is 20 percent lower than the average over the last 40 years, equivalent to a sea ice loss nearly 10 times the area of New Zealand, said Tim Naish, director of the Antarctic Research Centre at New Zealand’s Victoria University of Wellington, who was not a participant in the study. ‘Cascading influences’ The precise impact of climate change on Antarctica and the surrounding ocean has been uncertain and scientists have struggled to measure how much global warming is affecting the thickness of Antarctic ice. However, from phenomena such as the rapid decline in sea ice, it is “scientifically reasonable” to assume that extreme events are going to intensify as global temperatures rise, said Martin Siegert, a glaciologist at the University of Exeter and another co-author.

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History of this topic

Mushy ice and lost kit: The scientists studying Antarctica as it melts
2 weeks, 5 days ago

Mushy ice and lost kit: The scientists studying Antarctica as it melts

BBC  

Mushy ice and lost kit: The scientists studying Antarctica as it melts Getty Images With Antarctica's climate warming at an unprecedented rate, scientists are battling with dangerously thin ice and equipment falling into the sea. "'We'd get 100 or more dives through the sea ice in the winter period," says Morley, a marine biologist with the British Antarctic Survey. Getty …

Dwindling Antarctic sea ice driving more storms, study warns
3 weeks, 2 days ago

Dwindling Antarctic sea ice driving more storms, study warns

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Dwindling Antarctic sea ice is driving more storms in the Southern Ocean, a new study …

Melting sea ice in Antarctica causes ocean storms, scientists say
3 weeks, 2 days ago

Melting sea ice in Antarctica causes ocean storms, scientists say

Raw Story  

The record-breaking retreat of Antarctic sea ice in 2023 has led to more frequent storms over newly exposed parts of the Southern Ocean, according to a study published Wednesday. Scientists know that the loss of Antarctic sea ice can diminish penguin numbers, cause ice shelves to melt in warmer waters, and impede the Southern Ocean from absorbing carbon dioxide. Using …

Antarctic researchers warn of possible 'catastrophic' sea level rise within our lifetime in group statement
1 month, 2 weeks ago

Antarctic researchers warn of possible 'catastrophic' sea level rise within our lifetime in group statement

ABC  

Hundreds of polar researchers have issued an emergency statement calling for urgent action to deal with the impacts of climate change in Antarctica. "Nowhere on Earth is there a greater cause of uncertainty in sea level rise projections than from East Antarctica, in Australia's backyard," the statement says. The statement says "recent research has shown record-low sea ice, extreme heatwaves …

Antarctica's 'Doomsday Glacier' is on the verge of COLLAPSING: Huge ice sheet the size of Great Britain could cause global sea levels to rise by 2 FEET, study warns
3 months, 3 weeks ago

Antarctica's 'Doomsday Glacier' is on the verge of COLLAPSING: Huge ice sheet the size of Great Britain could cause global sea levels to rise by 2 FEET, study warns

Daily Mail  

With the potential to cause sea levels across the planet to rise, it's no wonder the Thwaites Glacier has earned the nickname the 'Doomsday Glacier.' With the potential to cause seas across the planet to rise, it's no wonder the Thwaites Glacier has earned the nickname the 'Doomsday Glacier' The Thwaites Glacier is roughly 74.5 miles across - the same …

Scientists in Chile question if Antarctica has hit a point of no return
4 months, 1 week ago

Scientists in Chile question if Antarctica has hit a point of no return

The Hindu  

Nearly 1,500 academics, researchers and scientists specialising in Antarctica gathered in southern Chile for the 11th Scientific Committee on Antarctic Research conference this week to share the most cutting-edge research from the vast white continent. With detailed weather station and satellite data dating back only about 40 years, scientists wondered whether these events meant Antarctica had reached a tipping point, …

We’ve underestimated the ‘Doomsday’ glacier - and results could be devastating
7 months, 2 weeks ago

We’ve underestimated the ‘Doomsday’ glacier - and results could be devastating

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. The Thwaites Glacier — dubbed the “Doomsday” glacier because of the grave impacts for global sea level rise if …

Record low sea-ice levels around Antarctica ‘likely due to climate change’
7 months, 3 weeks ago

Record low sea-ice levels around Antarctica ‘likely due to climate change’

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Record-breaking low levels of sea ice around Antarctica in 2023 may have been influenced by …

Study says 2023’s crazy Atlantic ocean heat, low Antarctic sea ice give glimpse of much hotter world
10 months, 2 weeks ago

Study says 2023’s crazy Atlantic ocean heat, low Antarctic sea ice give glimpse of much hotter world

Associated Press  

Off the charts “crazy” heat in the North Atlantic ocean and record-smashing Antarctic sea ice lows last year are far more severe than what Earth’s supposed to get with current warming levels. A study in the Bulletin of the American Meteorological Society charted the North Atlantic sea temperature and the Antarctic sea ice halfway across the globe against long-accepted computer …

Study says 2023's crazy Atlantic ocean heat, low Antarctic sea ice give glimpse of much hotter world
10 months, 2 weeks ago

Study says 2023's crazy Atlantic ocean heat, low Antarctic sea ice give glimpse of much hotter world

The Independent  

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Off the charts “crazy” heat …

Cracks in the ice: A continental shift in Antarctica
11 months, 1 week ago

Cracks in the ice: A continental shift in Antarctica

Hindustan Times  

Antarctica is Earth’s coldest region, oldest ecosystem, and largest and driest desert. “Although there have been isolated cases of colonies being affected by early sea ice loss, this is the first recorded case of a regional failure – where the majority of colonies in a region have all failed in one season,” says Peter Fretwell, a researcher with the British …

Greenland lost 20% more ice than previously estimated: Study
11 months, 3 weeks ago

Greenland lost 20% more ice than previously estimated: Study

Live Mint  

Due to global warming, glaciers in Greenland are melting five times faster than 20 years ago, scientists from the University of Copenhagen revealed in November last year. According to a Reuters report, if the ancient ice sheet were to melt away completely, it would raise sea levels by at least 20 feet. The melting of Greenland’s ice sheet, the second-largest …

Greenland has lost more ice than previously thought: study
11 months, 3 weeks ago

Greenland has lost more ice than previously thought: study

The Hindu  

Climate change has caused Greenland’s ice sheet to lose 20% more ice than previously thought, according to research published Wednesday that used satellite imagery to track the retreat of glaciers over the past four decades. Previous studies have found that about 5,000 gigatons of ice has been lost from the surface of the Greenland ice sheet in the past two …

Scientists explain Antarctica’s raving 2022 heatwave in groundbreaking papers
11 months, 3 weeks ago

Scientists explain Antarctica’s raving 2022 heatwave in groundbreaking papers

The Hindu  

Climate scientists don’t like surprises. But they provide scientists a deeper understanding of the links between the tropics and Antarctica – and give the global community a chance to prepare for what a warmer world may bring. When the tropical air collided with this so-called “blocking high”, it caused the most intense atmospheric river ever observed over East Antarctica. The …

On the cusp of climate talks, UN chief Guterres visits crucial Antarctica
1 year, 1 month ago

On the cusp of climate talks, UN chief Guterres visits crucial Antarctica

The Hindu  

On the cusp of the COP28 climate talks, U.N. Secretary-General Antonio Guterres visited frozen but rapidly melting Antarctica and said Thursday that intense action must be taken at the conference where countries will address their commitments to lowering emissions of planet-warming gases. He described the U.N. climate change conference that begins in Dubai next week as an opportunity for nations …

A rapidly melting Antarctica gets the attention of UN chief ahead of COP28 climate talks
1 year, 1 month ago

A rapidly melting Antarctica gets the attention of UN chief ahead of COP28 climate talks

Associated Press  

KING GEORGE ISLAND, Antarctica — On the cusp of the COP28 climate talks, U.N. Secretary-General Antonio Guterres visited frozen but rapidly melting Antarctica and said Thursday that intense action must be taken at the conference where countries will address their commitments to lowering emissions of planet-warming gases. He described the U.N. climate change conference that begins in Dubai next week …

Even with carbon emissions cuts, a key part of Antarctica is doomed to slow collapse, study says
1 year, 2 months ago

Even with carbon emissions cuts, a key part of Antarctica is doomed to slow collapse, study says

Associated Press  

No matter how much the world cuts back on carbon emissions, a key and sizable chunk of Antarctica is essentially doomed to an “unavoidable” melt, a new study found. The study in Monday’s journal Nature Climate Change found even if future warming was limited to just a few tenths of a degree more – an international goal that many scientists …

Humans may have lost control of West Antarctic Ice Shelf melting, study finds
1 year, 2 months ago

Humans may have lost control of West Antarctic Ice Shelf melting, study finds

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Humans “may have lost control” of the West Antarctic Ice Sheet – with inevitable melting …

Scientists track 'alarming' melt in Antarctic ice shelves
1 year, 2 months ago

Scientists track 'alarming' melt in Antarctic ice shelves

The Hindu  

Around 40% of Antarctica's ice shelves have significantly shrunk over the last 25 years, scientists said on Thursday, in findings the European Space Agency said were "alarming". The melting saw 71 of Antarctica's 162 ice shelves lose mass from 1997 to 2021 - of which 68 posted a "statistically significant" reduction, according to the study published in the journal Science …

Climate change: Antarctic winter sea ice hits record low
1 year, 3 months ago

Climate change: Antarctic winter sea ice hits record low

Live Mint  

Sea ice in Antarctica hit record low levels this winter, the United States National Snow and Ice Data Center said earlier this week, emphasising the urgency to address concerns about the increasingly devastating impact of climate change at the southern pole. This year, sea ice covered less than 17 million square kilometres of the Antarctic, which is 1 million square …

Arctic ice at its 6th lowest on record as Earth warms, Antarctic sees low growth
1 year, 3 months ago

Arctic ice at its 6th lowest on record as Earth warms, Antarctic sees low growth

India Today  

As Earth gets warms due to global warming, the polar regions are witnessing strange changes. Scientists tracked that on September 19, 2023, the Arctic sea ice reached its annual minimum extent of 4.23 million square kilometers, marking it as the sixth-lowest year in the satellite record. Meanwhile, on September 10, Antarctic sea ice hit its lowest maximum extent on record …

Antarctic sea ice hits ‘record-smashing’ low coverage area, new data show
1 year, 3 months ago

Antarctic sea ice hits ‘record-smashing’ low coverage area, new data show

Al Jazeera  

Concerns that world is experiencing start of a long-term trend of decline in Antarctic sea ice. https://t.co/y7LJie6xff pic.twitter.com/XQ7LwWAzaG — National Snow and Ice Data Center September 25, 2023 In February, at the height of the austral summer, the Antarctic sea ice pack had reached a minimum extent of 1.79 million sq km, also a record, according to the NSIDC. But …

Antarctica's sea-ice well below winter level, at 'mind-blowing' low: Experts
1 year, 3 months ago

Antarctica's sea-ice well below winter level, at 'mind-blowing' low: Experts

Live Mint  

Climate change and global warming have played a devastating role in maintaining the ecological balance of the planet earth. As per satellite data a new worrying benchmark for Antarctica shows that the sea-ice surrounding the region is well below any previous recorded winter level, reported BBC. {{^adFree}} {{/adFree}} "It's so far outside anything we've seen, it's almost mind-blowing," BBC quoted …

Antarctica’s sea-ice well below winter level, at ’mind-blowing’ low: Experts
1 year, 3 months ago

Antarctica’s sea-ice well below winter level, at ’mind-blowing’ low: Experts

Live Mint  

Climate change and global warming have played a devastating role in maintaining the ecological balance of the planet earth. As per satellite data a new worrying benchmark for Antarctica shows that the sea-ice surrounding the region is well below any previous recorded winter level, reported BBC. "It's so far outside anything we've seen, it's almost mind-blowing," BBC quoted Walter Meier, …

Even frozen Antarctica is being walloped by climate extremes, scientists find
1 year, 5 months ago

Even frozen Antarctica is being walloped by climate extremes, scientists find

Associated Press  

Even in Antarctica — one of the most remote and desolate places on Earth — scientists say they are finding shattered temperature records and an increase in the size and number of wacky weather events. The continent “is not a static giant frozen in time,” they said, but instead feels climate change’s wrath and extremes “sporadically and unpredictably.” Anna Hogg, …

Even frozen Antarctica is being walloped by climate extremes, scientists find
1 year, 5 months ago

Even frozen Antarctica is being walloped by climate extremes, scientists find

LA Times  

Penguins walk on the shore of Bahia Almirantazgo in Antarctica on Jan. 27, 2015. The continent “is not a static giant frozen in time,” they said, but instead feels climate change’s wrath and extremes “sporadically and unpredictably.” Anna Hogg, a co-author on the paper and professor at the University of Leeds, said that their work illustrates complex and connected changes …

Cause and effect l Winter is here, but it's not enough
1 year, 5 months ago

Cause and effect l Winter is here, but it's not enough

Hindustan Times  

In " the era of global boiling ", heatwaves have become a bit of a news fixture, with effects ranging from wildfires to extreme spells of heat across the northern hemisphere. On July 31, the sea ice extent in the southern hemisphere reached its lowest level of 14.624 million square kilometres. In 1979, when the winter ice was first observed, …

Antarctic sea ice levels dive in 'five-sigma event', as experts flag worsening consequences for planet
1 year, 5 months ago

Antarctic sea ice levels dive in 'five-sigma event', as experts flag worsening consequences for planet

ABC  

In short: Antarctic sea ice has usually been able to recover in winter. But this year, sea ice has not returned to expected levels during winter Antarctic sea ice has usually been able to recover in winter. One scientist says if the sea ice downward trend continues, it will be "difficult to reverse the trajectory". Antarctica's icy pulse Photo shows …

Antarctic sea ice has shrunk by an area nine times the size of Britain
1 year, 6 months ago

Antarctic sea ice has shrunk by an area nine times the size of Britain

Hindustan Times  

HIGH SUMMER in the northern hemisphere is deepest winter in Antarctica. It is normally surrounded by a vast, growing expanse of sea ice, which typically reaches its greatest extent around September. Thawpoint On June 12th the continent’s sea ice covered just 10.7m square km. Since 1979 its summer surface area has fallen by roughly 12.6% per decade; global average temperatures …

Global ocean temperatures hit record level for April and May
1 year, 6 months ago

Global ocean temperatures hit record level for April and May

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. This year we have seen Antarctic sea ice shrink to a record low-point for the time of year, following …

Data | Antarctic sea ice cover hits record lows on many days of 2023
1 year, 7 months ago

Data | Antarctic sea ice cover hits record lows on many days of 2023

The Hindu  

June 01, 2023 12:05 pm | Updated June 06, 2023 02:16 pm IST On February 19, the extent of sea ice in Antarctica fell to the lowest level ever recorded. Chart 1 | The chart shows the Antarctic sea ice extent in million square kilometres Charts appear incomplete? On many days, the sea ice extent declined notably lower than the …

Antarctic sea ice hits another record low: Natural fluctuation or sign of climate change?
1 year, 7 months ago

Antarctic sea ice hits another record low: Natural fluctuation or sign of climate change?

ABC  

The icy waters off the coast of Antarctica are in a state of constant change. Understanding the resilience of the Antarctic sea ice is vital, as changes can have dramatic impacts on global ocean currents, weather and regional climate. One measurement scientists look at when measuring the health of the sea ice extent is the annual minimum, which is usually …

Antarctica’s heart of ice has skipped a beat. Time to take our medicine
1 year, 8 months ago

Antarctica’s heart of ice has skipped a beat. Time to take our medicine

The Hindu  

The rhythmic expansion and contraction of Antarctic sea ice is like a heartbeat. And just as a change in our heartbeat affects our whole body, a change to sea ice around Antarctica affects the whole world. During autumn and winter, the surface of the ocean freezes as sea ice advances northwards, and then in the spring, the ice melts as …

Melting Antarctic ice may strangle vital ocean currents
1 year, 9 months ago

Melting Antarctic ice may strangle vital ocean currents

Salon  

As Antarctic ice melts, all of that fresh water pours into the ocean, essentially diluting it by reducing its salinity. It found that the world is on the verge of a potentially catastrophic slowdown, which could have a devastating effect on climate change, marine ecosystems, and the stability of Antarctic ice. "Our modeling shows that if global carbon emissions continue …

Rising Antarctic ice melt will dramatically slow global ocean flows
1 year, 9 months ago

Rising Antarctic ice melt will dramatically slow global ocean flows

The Hindu  

Rapidly melting Antarctic ice is dramatically slowing down the flow of water through the world's oceans, and could have a disastrous impact on the global climate, the marine food chain and even the stability of ice shelves, new research has found. "That's stunning to see that happen so quickly," said Alan Mix, a paleoclimatologist at Oregon State University and co-author …

Rapidly melting Antarctic ice could affect oceans ‘for centuries’
1 year, 9 months ago

Rapidly melting Antarctic ice could affect oceans ‘for centuries’

Al Jazeera  

Scientists warn deep ocean water flows from the Antarctic could decline by 40 percent by 2050, threatening the collapse of circulation crucial for planetary systems. Rapidly melting Antarctic ice is dramatically slowing down the flow of water through the world’s oceans and could have a disastrous effect on global climate, the marine food chain, and even the stability of ice …

Arctic sea ice thins in 2 big jumps, and now more vulnerable
1 year, 9 months ago

Arctic sea ice thins in 2 big jumps, and now more vulnerable

Associated Press  

Climate change attacked crucial Arctic sea ice thickness in two sudden big gobbles instead of steady nibbling, a new study says. It cited “the long-lasting impact of climate change on the Arctic sea ice.” “Ice is much more vulnerable than before because it’s thinner, it can easily melt,” said study lead author Hiroshi Sumata, a sea ice scientist at the …

Antarctic sea ice cover at record low
1 year, 10 months ago

Antarctic sea ice cover at record low

The Hindu  

Sea ice in Antarctica shrank to the smallest area on record in February for the second year in a row, continuing a decade-long decline, the European Union's climate monitoring service said Tuesday. "Antarctic sea ice reached its lowest extent in the 45-year satellite data record," said Samantha Burgess, Deputy Director of C3S. U.S. government scientists have also confirmed a new …

SCIENCE NOTEBOOK | Extent of Antarctic sea ice reached a record low in February
1 year, 10 months ago

SCIENCE NOTEBOOK | Extent of Antarctic sea ice reached a record low in February

The Hindu  

Published : Mar 09, 2023 10:40 IST - 1 MIN READ Scientists at the National Snow and Ice Data Center of NASA at the University of Colorado Boulder reported that Antarctic sea ice likely reached its minimum extent for 2023, at 1.79 million square kilometres on February 21. “Antarctica’s response to climate change has been different from the Arctic’s,” said …

Antarctic sea ice extent reaches all-time low: EU monitor
1 year, 10 months ago

Antarctic sea ice extent reaches all-time low: EU monitor

Al Jazeera  

Ice in the Antarctic sea reached its lowest monthly extent in February, breaking a previous record from 2017, the European Union’s climate monitoring service has said. In a report released on Tuesday, the Copernicus Climate Change Service said that Antarctic sea ice shrunk 34 percent below the average for February. “Our latest data show that Antarctic sea ice reached its …

Antarctica's 'Doomsday Glacier' is Melting. Here's Why You — Sitting 12,000 Km Away — Should Worry
1 year, 10 months ago

Antarctica's 'Doomsday Glacier' is Melting. Here's Why You — Sitting 12,000 Km Away — Should Worry

News 18  

Thwaites Glacier, often known as the “doomsday glacier,” is on the edge of collapsing, according to new assessments. The total collapse of the Thwaites might result in a sea level rise of more than two feet, devastating coastal cities around the world, explains the CNN report. The Thwaites is also acting as a natural dam to the surrounding ice in …

Scientists worried as Antarctic sea ice hits lowest levels ever recorded
1 year, 10 months ago

Scientists worried as Antarctic sea ice hits lowest levels ever recorded

India Today  

Antarctic sea ice reached record low levels for the third time in six years, alarming polar scientists. The record was broken on February 12 this year and the sea ice level reached a new record low of 1.79m sq km on 25 February. Dr Will Hobbs, an Antarctic sea ice expert at the University of Tasmania with the Australian Antarctic …

Antarctic sea ice hits new record low in 2023
1 year, 10 months ago

Antarctic sea ice hits new record low in 2023

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Antarctic sea ice has likely shrunk to a record low, US scientists announced on Monday, …

Antarctica’s Doomsday Glacier ‘in trouble’ say scientists - All you need to know
1 year, 10 months ago

Antarctica’s Doomsday Glacier ‘in trouble’ say scientists - All you need to know

Live Mint  

For years now, scientists have been warily watching Antarctica’s Thwaites Glacier for its capability to propel a catastrophic sea level rise. A complete collapse of the ‘Doomsday Glacier’ could lead to sea level rise of more than two feet. With the glacier acting as a dam of sorts for the surrounding ice, its breakdown could ultimately lead to a global …

Antarctica Doomsday Glacier: ‘We should all be very concerned’
1 year, 10 months ago

Antarctica Doomsday Glacier: ‘We should all be very concerned’

Al Jazeera  

Melting of the Florida-sized glacier is of grave concern, with the potential for significant global sea level rise. Scientists studying Antarctica’s vast Thwaites Glacier – nicknamed the “Doomsday Glacier” – say warm water is seeping into its weak spots, threatening its demise and a massive sea rise. “That is the kind of thing we should all be very concerned about.” …

‘Extraordinary marine heatwave’ could threaten Antarctica’s ice shelves
1 year, 10 months ago

‘Extraordinary marine heatwave’ could threaten Antarctica’s ice shelves

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy There are signs of an “extraordinary marine heatwave” in the Antarctic, a scientist monitoring ocean …

Antarctic ice hits record low for January: climate monitor
1 year, 11 months ago

Antarctic ice hits record low for January: climate monitor

The Hindu  

The Antarctic Ocean area covered by ice was the lowest on record for January, exposing Earth to even more planet-warming heat, scientists reported Wednesday. Last month was also the third warmest January on record in Europe, with temperatures on New Year's Day reaching all-time highs on some parts of the continent, according to European Union's Copernicus climate monitor. Copernicus said …

New cause of melting Antarctic ice shelves discovered
2 years ago

New cause of melting Antarctic ice shelves discovered

The Independent  

Researchers have identified a process that may indicate ice shelves melting at an accelerating rate in the Antarctic. A study led by the University of East Anglia discovered that the instability of one ice shelf might affect other surrounding ice shelves, pushing it downstream. They also identified that a small ocean gyre - a system of circulating ocean currents - …

Antarctica's 'Doomsday glacier' rapidly melting: What study means for the world
2 years, 3 months ago

Antarctica's 'Doomsday glacier' rapidly melting: What study means for the world

Hindustan Times  

Antarctica's Thwaites glacier is melting at a faster rate than previously expected, scientists said in a new study, published in Nature Geoscience. Antarctica's Thwaites glacier: Antarctica's Thwaites glacier melting could severely raise global sea levels. Antarctica's Thwaites glacier is melting "twice the rate observed by satellite at the fastest retreating part of the grounding zone between 2011 and 2019," scientists …

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