Cracks in the Greenland ice sheet are accelerating, growing in size and depth as a result of climate change, a study has found.
Greenland, home to the world’s second-largest body of ice, contains enough water to add seven metres to the sea levels if the entire sheet were to melt, with research suggesting ocean levels could be 30 centimetres higher as a result by 2100.
Using more than 8,000 3D satellite surface maps, British researchers found that crevasses in the ice sheet had widened significantly at the fast-flowing edges of the ice sheet between 2016 and 2021, suggesting fissures were forming faster than previously thought.
That has the potential to speed up the loss of ice from Greenland, the researchers said.
“As crevasses grow, they feed the mechanisms that make the ice sheet’s glaciers move faster, driving water and heat to the interior of the ice sheet and accelerating the calving of icebergs into the ocean,” said study co-author Prof Ian Howat, director of the Byrd Polar and Climate Research Centre at Ohio State University in the US.
“These processes can in turn speed up ice flow and lead to the formation of more and deeper crevasses – a domino effect that could drive the loss of ice from Greenland at a faster pace.”
The researchers, led by Durham University in northern England, say they hope their findings will allow scientists to better predict future behaviour of the ice sheet.
The mineral-rich autonomous territory of 55,000 people belongs to Nato member Denmark but hosts a US airbase. President Donald Trump last month said he would not rule out the use of military force to seize control of Greenland.
Greenland has contributed to about 14mm of rising sea levels since 1992 because of increased melting from the ice surface as a result of warmer air temperature and more ice flow into the water in response to warmer ocean temperatures, which are being driven by climate change.
The research discovered accelerations in glacier flow speed associated with significant rises in the size of the cracks at the edges of the ice sheet where large glaciers meet the sea. In some parts, fissures spread by 25 per cent.
That was offset by a reduction in crevasses at Sermeq Kujalleq, the fastest-flowing glacier in Greenland, which underwent a temporary slowdown in movement during the study period.
This balanced the total increase in the size of crevasses across the entire ice sheet during the study period to 4.3 per cent, with an error margin of plus/minus 5.9 per cent. But Sermeq Kujalleq’s flow speed has since started to increase again – suggesting the period of balance between crevasse growth and closure on the ice sheet is now over.
“In a warming world, we would expect to see more crevasses forming,” said the study's lead author Dr Tom Chudley, of the geography department at Durham University. “This is because glaciers are accelerating in response to warmer ocean temperatures and because meltwater filling crevasses can force fractures deeper into the ice. However, until now we haven’t had the data to show where and how fast this is happening across the entirety of the Greenland ice sheet."
But for the first time, significant increases in the size and depth of crevasses at fast-flowing glaciers at the edges of the ice sheet were spotted on timescales of five years and less, he said.
“With this data set we can see that it’s not just that crevasse fields are extending into the ice sheet, as previously observed – instead, change is dominated by existing crevasse fields getting larger and deeper,” he added.
The project which provided the imagery used by researchers will continue to produce high-resolution models until at least 2032, Prof Howat said. “This will allow us to monitor glaciers in Greenland and across the wider Arctic as they continue to respond to climate change in regions experiencing faster rates of warming than anywhere else on Earth,” he added.
About Seez
Company name/date started: Seez, set up in September 2015 and the app was released in August 2017
Founder/CEO name(s): Tarek Kabrit, co-founder and chief executive, and Andrew Kabrit, co-founder and chief operating officer
Based in: Dubai, with operations also in Kuwait, Saudi Arabia and Lebanon
Sector: Search engine for car buying, selling and leasing
Size: (employees/revenue): 11; undisclosed
Stage of funding: $1.8 million in seed funding; followed by another $1.5m bridge round - in the process of closing Series A
Investors: Wamda Capital, B&Y and Phoenician Funds
Joker: Folie a Deux
Starring: Joaquin Phoenix, Lady Gaga, Brendan Gleeson
Director: Todd Phillips
Rating: 2/5
The specs
Engine: 2.0-litre 4cyl turbo
Power: 261hp at 5,500rpm
Torque: 405Nm at 1,750-3,500rpm
Transmission: 9-speed auto
Fuel consumption: 6.9L/100km
On sale: Now
Price: From Dh117,059
SECRET%20INVASION
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20Ali%20Selim%20%3Cbr%3E%3Cstrong%3EStars%3A%3C%2Fstrong%3E%20Samuel%20L%20Jackson%2C%20Olivia%20Coleman%2C%20Kingsley%20Ben-Adir%2C%20Emilia%20Clarke%20%3Cbr%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%203%2F5%26nbsp%3B%3C%2Fp%3E%0A
More from Rashmee Roshan Lall
Most%20polluted%20cities%20in%20the%20Middle%20East
%3Cp%3E1.%20Baghdad%2C%20Iraq%3Cbr%3E2.%20Manama%2C%20Bahrain%3Cbr%3E3.%20Dhahran%2C%20Saudi%20Arabia%3Cbr%3E4.%20Kuwait%20City%2C%20Kuwait%3Cbr%3E5.%20Ras%20Al%20Khaimah%2C%20UAE%3Cbr%3E6.%20Ash%20Shihaniyah%2C%20Qatar%3Cbr%3E7.%20Abu%20Dhabi%2C%20UAE%3Cbr%3E8.%20Cairo%2C%20Egypt%3Cbr%3E9.%20Riyadh%2C%20Saudi%20Arabia%3Cbr%3E10.%20Dubai%2C%20UAE%3C%2Fp%3E%0A%3Cp%3E%3Cem%3ESource%3A%202022%20World%20Air%20Quality%20Report%3C%2Fem%3E%3C%2Fp%3E%0A
MOST%20POLLUTED%20COUNTRIES%20IN%20THE%20WORLD
%3Cp%3E1.%20Chad%3Cbr%3E2.%20Iraq%3Cbr%3E3.%20Pakistan%3Cbr%3E4.%20Bahrain%3Cbr%3E5.%20Bangladesh%3Cbr%3E6.%20Burkina%20Faso%3Cbr%3E7.%20Kuwait%3Cbr%3E8.%20India%3Cbr%3E9.%20Egypt%3Cbr%3E10.%20Tajikistan%3Cbr%3E%3Cbr%3E%3Cem%3ESource%3A%202022%20World%20Air%20Quality%20Report%3C%2Fem%3E%3C%2Fp%3E%0A
The%20Color%20Purple
%3Cp%3E%3Cstrong%3EDirector%3A%20%3C%2Fstrong%3EBlitz%20Bazawule%3Cbr%3E%3Cstrong%3EStarring%3A%20%3C%2Fstrong%3EFantasia%20Barrino%2C%20Taraji%20P%20Henson%2C%20Danielle%20Brooks%2C%20Colman%20Domingo%3Cbr%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%204%2F5%3C%2Fp%3E%0A
WOMAN AND CHILD
Director: Saeed Roustaee
Starring: Parinaz Izadyar, Payman Maadi
Rating: 4/5
Global state-owned investor ranking by size
|
1.
|
United States
|
|
2.
|
China
|
|
3.
|
UAE
|
|
4.
|
Japan
|
|
5
|
Norway
|
|
6.
|
Canada
|
|
7.
|
Singapore
|
|
8.
|
Australia
|
|
9.
|
Saudi Arabia
|
|
10.
|
South Korea
|
Walls
Louis Tomlinson
3 out of 5 stars
(Syco Music/Arista Records)
Singham Again
Director: Rohit Shetty
Stars: Ajay Devgn, Kareena Kapoor Khan, Ranveer Singh, Akshay Kumar, Tiger Shroff, Deepika Padukone
Rating: 3/5
Representing%20UAE%20overseas
%3Cp%3E%0DIf%20Catherine%20Richards%20debuts%20for%20Wales%20in%20the%20Six%20Nations%2C%20she%20will%20be%20the%20latest%20to%20have%20made%20it%20from%20the%20UAE%20to%20the%20top%20tier%20of%20the%20international%20game%20in%20the%20oval%20ball%20codes.%0D%3Cbr%3E%20%0D%3Cbr%3E%3Cstrong%3ESeren%20Gough-Walters%20(Wales%20rugby%20league)%3C%2Fstrong%3E%0D%3Cbr%3EBorn%20in%20Dubai%2C%20raised%20in%20Sharjah%2C%20and%20once%20an%20immigration%20officer%20at%20the%20British%20Embassy%20in%20Abu%20Dhabi%2C%20she%20debuted%20for%20Wales%20in%20rugby%20league%20in%202021.%0D%3Cbr%3E%20%0D%3Cbr%3E%3Cstrong%3ESophie%20Shams%20(England%20sevens)%3C%2Fstrong%3E%0D%3Cbr%3EWith%20an%20Emirati%20father%20and%20English%20mother%2C%20Shams%20excelled%20at%20rugby%20at%20school%20in%20Dubai%2C%20and%20went%20on%20to%20represent%20England%20on%20the%20sevens%20circuit.%20%0D%3Cbr%3E%20%0D%3Cbr%3E%3Cstrong%3EFiona%20Reidy%20(Ireland)%3C%2Fstrong%3E%0D%3Cbr%3EMade%20her%20Test%20rugby%20bow%20for%20Ireland%20against%20England%20in%202015%2C%20having%20played%20for%20four%20years%20in%20the%20capital%20with%20Abu%20Dhabi%20Harlequins%20previously.%0D%3C%2Fp%3E%0A
UAE currency: the story behind the money in your pockets
Company%20profile
%3Cp%3E%3Cstrong%3EName%3A%3C%2Fstrong%3E%20WallyGPT%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2014%3Cbr%3E%3Cstrong%3EFounders%3A%20%3C%2Fstrong%3ESaeid%20and%20Sami%20Hejazi%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%3Cbr%3E%3Cstrong%3EInvestment%20raised%3A%20%3C%2Fstrong%3E%247.1%20million%3Cbr%3E%3Cstrong%3ENumber%20of%20staff%3A%3C%2Fstrong%3E%2020%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%20%3C%2Fstrong%3EPre-seed%20round%3C%2Fp%3E%0A
Sole survivors
- Cecelia Crocker was on board Northwest Airlines Flight 255 in 1987 when it crashed in Detroit, killing 154 people, including her parents and brother. The plane had hit a light pole on take off
- George Lamson Jr, from Minnesota, was on a Galaxy Airlines flight that crashed in Reno in 1985, killing 68 people. His entire seat was launched out of the plane
- Bahia Bakari, then 12, survived when a Yemenia Airways flight crashed near the Comoros in 2009, killing 152. She was found clinging to wreckage after floating in the ocean for 13 hours.
- Jim Polehinke was the co-pilot and sole survivor of a 2006 Comair flight that crashed in Lexington, Kentucky, killing 49.
What can victims do?
Always use only regulated platforms
Stop all transactions and communication on suspicion
Save all evidence (screenshots, chat logs, transaction IDs)
Report to local authorities
Warn others to prevent further harm
Courtesy: Crystal Intelligence
GOLF’S RAHMBO
- 5 wins in 22 months as pro
- Three wins in past 10 starts
- 45 pro starts worldwide: 5 wins, 17 top 5s
- Ranked 551th in world on debut, now No 4 (was No 2 earlier this year)
- 5th player in last 30 years to win 3 European Tour and 2 PGA Tour titles before age 24 (Woods, Garcia, McIlroy, Spieth)
THE%20SPECS
%3Cp%3EBattery%3A%2060kW%20lithium-ion%20phosphate%3Cbr%3EPower%3A%20Up%20to%20201bhp%3Cbr%3E0%20to%20100kph%3A%207.3%20seconds%3Cbr%3ERange%3A%20418km%3Cbr%3EPrice%3A%20From%20Dh149%2C900%3Cbr%3EAvailable%3A%20Now%3C%2Fp%3E%0A
The specs: Rolls-Royce Cullinan
Price, base: Dh1 million (estimate)
Engine: 6.75-litre twin-turbo V12
Transmission: Eight-speed automatic
Power: 563hp @ 5,000rpm
Torque: 850Nm @ 1,600rpm
Fuel economy, combined: 15L / 100km
ESSENTIALS
The flights
Emirates, Etihad and Swiss fly direct from the UAE to Zurich from Dh2,855 return, including taxes.
The chalet
Chalet N is currently open in winter only, between now and April 21. During the ski season, starting on December 11, a week’s rental costs from €210,000 (Dh898,431) per week for the whole property, which has 22 beds in total, across six suites, three double rooms and a children’s suite. The price includes all scheduled meals, a week’s ski pass, Wi-Fi, parking, transfers between Munich, Innsbruck or Zurich airports and one 50-minute massage per person. Private ski lessons cost from €360 (Dh1,541) per day. Halal food is available on request.
The%C2%A0specs%20
%3Cp%3E%0D%3Cstrong%3EEngine%3A%20%3C%2Fstrong%3E6-cylinder%2C%204.8-litre%20%0D%3Cbr%3E%3Cstrong%3ETransmission%3A%20%3C%2Fstrong%3E5-speed%20automatic%20and%20manual%0D%3Cbr%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E280%20brake%20horsepower%20%0D%3Cbr%3E%3Cstrong%3ETorque%3A%20%3C%2Fstrong%3E451Nm%20%0D%3Cbr%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3Efrom%20Dh153%2C00%0D%3Cbr%3E%3Cstrong%3EOn%20sale%3A%20%3C%2Fstrong%3Enow%3C%2Fp%3E%0A
The biog
Fast facts on Neil Armstrong’s personal life:
- Armstrong was born on August 5, 1930, in Wapakoneta, Ohio
- He earned his private pilot’s license when he was 16 – he could fly before he could drive
- There was tragedy in his married life: Neil and Janet Armstrong’s daughter Karen died at the age of two in 1962 after suffering a brain tumour. She was the couple’s only daughter. Their two sons, Rick and Mark, consulted on the film
- After Armstrong departed Nasa, he bought a farm in the town of Lebanon, Ohio, in 1971 – its airstrip allowed him to tap back into his love of flying
- In 1994, Janet divorced Neil after 38 years of marriage. Two years earlier, Neil met Carol Knight, who became his second wife in 1994
Australia men's Test cricket fixtures 2021/22
One-off Test v Afghanistan:
Nov 27-Dec 1: Blundstone Arena, Hobart
The Ashes v England:
Dec 8-12: 1st Test, Gabba, Brisbane
Dec 16-20: 2nd Test, Adelaide Oval, Adelaide (day/night)
Dec 26-30: 3rd Test, Melbourne Cricket Ground, Melbourne
Jan 5-9, 2022: 4th Test, Sydney Cricket Ground, Sydney
Jan 14-18: 5th Test, Optus Stadium, Perth
UAE currency: the story behind the money in your pockets
