Newfound ice sheet tipping point could cause greater sea level rise
The Guardian|June 26, 2024
A newly identified tipping point for the loss of ice sheets in Antarctica and elsewhere could mean future sea level rise is significantly higher than shown by current projections.
Damian Carrington
Newfound ice sheet tipping point could cause greater sea level rise

A new study has examined how warming seawater intrudes between coastal ice sheets and the ground they rest on. The warm water melts cavities in the ice, allowing more water to flow in, expanding the cavities further in a feedback loop. This water then lubricates the collapse of ice into the ocean, pushing up sea levels.

The researchers used computer models to show that a "very small increase" in the temperature of the intruding water could lead to a "very big increase" in the loss of ice - the tipping point behaviour.

It is unknown how close the tipping point is, or whether it has already been crossed. However, the researchers said it could be triggered by temperature rises of just 10ths of a degree, and very likely by the rises expected in the coming decades.

Sea level rise is the greatest longterm impact of the climate crisis and is set to redraw the world map in the coming centuries. It has the potential to put scores of large cities, from New York City to Shanghai, below sea level and to affect billions of people.

هذه القصة مأخوذة من طبعة June 26, 2024 من The Guardian.

ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.

هذه القصة مأخوذة من طبعة June 26, 2024 من The Guardian.

ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.

المزيد من القصص من THE GUARDIAN مشاهدة الكل
Is waxwork target man Ronaldo really Portugal's best hope?
The Guardian

Is waxwork target man Ronaldo really Portugal's best hope?

Pandering to their talisman, however watchable heis, hasbecomea hindrance tothe team’s chances

time-read
3 mins  |
July 03, 2024
Demiral's double delight as Turkey seal last-eight place
The Guardian

Demiral's double delight as Turkey seal last-eight place

A tie that had promised noise, tempo and a rattling intensity delivered emphatically.

time-read
3 mins  |
July 03, 2024
Bellingham's alpha energy is part of England's problem
The Guardian

Bellingham's alpha energy is part of England's problem

While Uefa looks at player's crotch-grabbing celebration, Gareth Southgate must harness his winning instincts

time-read
5 mins  |
July 03, 2024
Inflation in the eurozone eases but ECB likely to keep interest rates on hold
The Guardian

Inflation in the eurozone eases but ECB likely to keep interest rates on hold

Inflation across the eurozone slowed to 2.5% in June despite lingering pressure on households from price increases in the service sector, leaving the European Central Bank on track to keep interest rates on hold this month.

time-read
1 min  |
July 03, 2024
Khan Younis IDF bombards ruined city and orders residents to evacuate
The Guardian

Khan Younis IDF bombards ruined city and orders residents to evacuate

Thousands of Palestinians were fleeing Khan Younis in southern Gaza after the Israel Defense Forces (IDF) once again bombarded the largely ruined city and ordered a mass evacuation of residents.

time-read
2 mins  |
July 03, 2024
Orbán holds talks with Zelenskiy in first visit to Ukraine in a decade
The Guardian

Orbán holds talks with Zelenskiy in first visit to Ukraine in a decade

Hungary's prime minister, an outspoken critic of western aid to Ukraine, has held talks with Volodomyr Zelenskiy in Kyiv, during a surprise visit by Europe's most pro-Russia leader to the Ukrainian capital.

time-read
2 mins  |
July 03, 2024
Manchester graduate who sold Viagra-style drugs online is jailed
The Guardian

Manchester graduate who sold Viagra-style drugs online is jailed

A University of Manchester graduate has been jailed for three and a half years for importing and selling illegal medicines on eBay and Amazon.

time-read
1 min  |
July 03, 2024
Labour donor sues Guido Fawkes blog owner for libel over Hamas claim
The Guardian

Labour donor sues Guido Fawkes blog owner for libel over Hamas claim

The Labour donor Dale Vince has employed a new legal approach to sue the political blog Guido Fawkes for libel, despite the website being hosted overseas.

time-read
2 mins  |
July 03, 2024
Public asked to monitor decline in blackbirds
The Guardian

Public asked to monitor decline in blackbirds

Beloved of Shakespeare and the Beatles, the blackbird and its sweet song have captured the imagination of Britons for centuries.

time-read
1 min  |
July 03, 2024
Chess prodigy, nine, is youngest player to be picked for England
The Guardian

Chess prodigy, nine, is youngest player to be picked for England

She is a nine-year-old prodigy who has already caused a commotion in the chess world with her fearless play and spectacular victories.

time-read
2 mins  |
July 03, 2024