Scientists in Chile question if Antarctica has hit a point of no return
3 months, 3 weeks 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, or a point of accelerated and irreversible sea ice loss from the West Antarctic ice sheet. Mike Weber, a paleooceanographer from Germany's University of Bonn, who specialises in Antarctic ice sheet stability, says sediment records dating back 21,000 years show similar periods of accelerated ice melt. The ice sheet has experienced similar accelerated ice mass loss at least eight times, Weber said, with acceleration beginning over a few decades that kick off a phase of ice loss that can last centuries, leading to dramatically higher sea levels around the world. Casado said data from dozens of ice cores collected throughout the ice sheet has allowed him to reconstruct temperature patterns in Antarctica dating back 800,000 years.

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History of this topic

Melting sea ice in Antarctica causes ocean storms, scientists say
5 days, 2 hours 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 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 …

Swirls and scoops: Antarctica's upside down ice-scape we had no idea existed
1 month ago

Swirls and scoops: Antarctica's upside down ice-scape we had no idea existed

BBC  

Swirls and scoops: Antarctica's upside down ice-scape we had no idea existed Filip Stedt/University of Gothenburg When scientists peered beneath one of Antarctica's floating ice shelves, they were surprised to find an upside-down landscape of peaks, valleys and plateaus. "If you melt all the ice in Thwaites, you're going to raise sea levels by 65cm – that's the mean sea …

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

Researchers Discover 2 Million-Year-Old Ice In East Antarctica
8 months ago

Researchers Discover 2 Million-Year-Old Ice In East Antarctica

News 18  

Researchers and scientists over the years have been braving across Antarctica amid the hottest, driest, coldest, windiest and most extreme conditions to understand the earth’s climate better. Researchers discover 2.7 million years old ice Back in 2022, Carter along with a team of researchers headed to Alan Hills in East Antarctica to conduct a range of studies to improve the …

Cracks in the ice: A continental shift in Antarctica
10 months, 3 weeks 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 …

Scientists explain Antarctica’s raving 2022 heatwave in groundbreaking papers
11 months, 1 week 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 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 …

Climate change: Antarctic winter sea ice hits record low
1 year, 2 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 …

Antarctic sea ice hits ‘record-smashing’ low coverage area, new data show
1 year, 2 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, 4 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, …

No quick fix to reverse ‘astonishing’ Antarctic sea ice loss: Scientists
1 year, 4 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 …

Even frozen Antarctica is being walloped by climate extremes, scientists find
1 year, 4 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, 4 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, 4 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 …

Data | Antarctic sea ice cover hits record lows on many days of 2023
1 year, 6 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, 6 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 …

Rapidly melting Antarctic ice could affect oceans ‘for centuries’
1 year, 8 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 …

Antarctic sea ice cover at record low
1 year, 9 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, 9 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, 9 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, 9 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, 9 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, 9 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 …

‘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 …

Seafloor images shed new light on Thwaites Glacier retreat
2 years, 3 months ago

Seafloor images shed new light on Thwaites Glacier retreat

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. Robert Larter, British Antarctic Survey However, the study indicates the glacier could see big changes over small timescales in …

Antarctic ice shelf is crumbling faster than ever
2 years, 4 months ago

Antarctic ice shelf is crumbling faster than ever

Live Mint  

Antarctica's coastal glaciers are shedding icebergs more rapidly than nature can replenish the crumbling ice, doubling previous estimates of losses from the world's largest ice sheet over the past 25 years, a satellite analysis showed on Wednesday. The first-of-its-kind study, led by researchers at NASA's Jet Propulsion Laboratory near Los Angeles and published in the journal Nature, raises new concern …

Antarctica is crumbling: Scientists find ice sheet thinning, headed for major disruption
2 years, 4 months ago

Antarctica is crumbling: Scientists find ice sheet thinning, headed for major disruption

India Today  

As climate change wreaks havoc on the planet, every corner of the world has been affected, including the frigid world of the Antarctic. And when ice shelves dwindle and weaken, the continent’s massive glaciers tend to speed up and increase the rate of global sea level rise,” JPL scientist Chad Greene, lead author of the calving study said in a …

Antarctic sea ice reaches second lowest level in 44 YEARS
2 years, 8 months ago

Antarctic sea ice reaches second lowest level in 44 YEARS

Daily Mail  

Antarctic sea ice has reached its second lowest level in almost half a century, new satellite data reveals, as scientists warn that the melting of the West Antarctic Ice Sheet could cause global sea levels to rise by up to 10 feet. Scientists have revealed the first evidence that rising greenhouse gases have a long-term warming effect on the Amundsen …

Indian scientists to dig deep ice to know past climate at Antarctica
3 years ago

Indian scientists to dig deep ice to know past climate at Antarctica

India TV News  

Indian scientists from the 41st expedition to Antarctica have embarked upon a multi-year study of the movement of deep ice sheets near the coast to understand the past climate, which in turn, will help understand how it will change in decades to come. It is for the first time that Indian scientists would drill up to 500 metres and pull …

How 1.5 million-year-old ice from Antarctica will help predict future of climate change
3 years ago

How 1.5 million-year-old ice from Antarctica will help predict future of 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 A team of scientists are preparing to drill into 1.5 million-year-old ice in east Antarctica …

Temperatures in Antarctica hit record high, UN scientists confirm
3 years, 5 months ago

Temperatures in Antarctica hit record high, UN scientists confirm

Daily Mail  

Antarctica has experienced its highest temperature on record, according to meteorologists at the UN. The reading was captured at the Esperanza Base, an Argentine research station on the Antarctic Peninsula – the northwest tip near to South America, and among the fastest warming regions on Earth. Scroll down for video The new reading of 64.9°F was captured at the Esperanza …

Explained: How Antarctica hit record temperature amid heat wave in Europe, Arctic
3 years, 5 months ago

Explained: How Antarctica hit record temperature amid heat wave in Europe, Arctic

Firstpost  

The new record for the maximum temperature for Antarctica is now 18.3 degrees Celsius, eclipsing the previous high of 17.5 degrees Celsius in March 2015 If you have followed the international weather news in June, you are probably still trying to process the astounding reports of record-breaking heat wave in some of the coldest places on the planet. “This new …

Antarctica closing in on a tipping point if emissions aren’t curbed: Scientists
3 years, 7 months ago

Antarctica closing in on a tipping point if emissions aren’t curbed: Scientists

Hindustan Times  

While US secretary of state Antony Blinken draws attention to climate change in the Arctic at meetings with other national officials this week in Iceland, an even greater threat looms on the other side of the planet. It holds enough land ice to raise global sea levels by more than 60 metres – roughly 10 times the amount in the …

Antarctica Has Been Rocked by 30,000 Tremors in Past Three Months, Chilean Scientists Say
4 years ago

Antarctica Has Been Rocked by 30,000 Tremors in Past Three Months, Chilean Scientists Say

News 18  

More than 30,000 tremors have rocked Antarctica since the end of August, according to the University of Chile, a spike in seismic activity that has intrigued researchers who study the remote, snowbound continent. Scientists with the university’s National Seismological Center said the small quakes – including one stronger shake of magnitude 6 – were detected in the Bransfield Strait, a …

Antarctic Peninsula hottest in three decades; rapid rate of ocean warming may be to blame, says study
4 years, 2 months ago

Antarctic Peninsula hottest in three decades; rapid rate of ocean warming may be to blame, says study

Firstpost  

Between January and August, temperatures reached between 2 and 3 degrees Celsius on the peninsula, according to researchers at the Chilean Air Force’s Frei Base Santiago : The year 2020 is the hottest in the Antarctic Peninsula in the past three decades, a study by the University of Santiago de Chile on Friday found. Between January and August, temperatures reached …

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