Melting ice sheets in Greenland and Antarctica are speeding up the already fast pace of sea-level rise, new satellite research shows.
At the current rate, the world's oceans on average will be at least 61 centimetres cm higher by the end of the century compared to today, according to researchers who published in Monday's Proceedings of the National Academies of Sciences on Monday.
Sea-level rise is caused by warming of the ocean and melting from glaciers and ice sheets. The research, based on 25 years of satellite data, shows that pace has quickened, mainly from the melting of massive ice sheets. It confirms scientists’ computer simulations and is in line with predictions from the United Nations, which releases regular climate change reports.
“It’s a big deal,” because the projected sea-level rise is a conservative estimate and it is likely to be higher, said lead author Steve Nerem of the University of Colorado.
Outside scientists said even small changes in sea levels can lead to flooding and erosion.
“Any flooding concerns that coastal communities have for 2100 may occur over the next few decades,” Oregon State University coastal flooding expert Katy Serafin said in an email.
Of the 7.5cm of sea-level rise in the past quarter century, about 55 per cent is from warmer water expanding, and the rest is from melting ice.
But the process is accelerating, and more than three-quarters of that acceleration since 1993 is due to melting ice sheets in Greenland and Antarctica, the study shows.
Like weather and climate, there are two factors in sea-level rise: year-to-year small rises and falls that are caused by natural events and larger long-term rising trends that are linked to man-made climate change.
Mr Nerem’s team removed the natural effects of the 1991 Mount Pinatubo eruption that temporarily chilled Earth and the climate phenomena El Nino and La Nina, and found the accelerating trend.
Sea-level rise, more than temperature, is a better gauge of climate change in action, said Anny Cazenave, director of Earth science at the International Space Science Institute in France, who edited the study. Mr Cazenave is one of the pioneers of space-based sea level research.
Global sea levels were stable for about 3,000 years until the 20th century when they rose and then accelerated due to global warming caused by the burning of coal, oil and natural gas, said climate scientist Stefan Rahmstorf of the Potsdam Institute in Germany.
More than 60cm of sea-level rise by the end of the century “would have big effects on places like Miami and New Orleans, but I don’t still view that as catastrophic” because those cities can survive – at great expense – that amount of rising seas under normal situations, Mr Nerem said.
But when a storm hits like 2012’s Superstorm Sandy, sea-level rise on top of storm surge can lead to record-setting damages, researchers said.
Some scientists at the American Geophysical Union meeting last year said Antarctica may be melting faster than predicted by Monday’s study.
Greenland has caused three times more sea-level rise than Antarctica so far, but ice melt on the southern continent is responsible for more of the acceleration.
“Antarctica seems less stable than we thought a few years ago,” Rutgers climate scientist Robert Kopp said.
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The Buckingham Murders
Starring: Kareena Kapoor Khan, Ash Tandon, Prabhleen Sandhu
Director: Hansal Mehta
Rating: 4 / 5
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The%20specs
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UAE currency: the story behind the money in your pockets
Panipat
Director Ashutosh Gowariker
Produced Ashutosh Gowariker, Rohit Shelatkar, Reliance Entertainment
Cast Arjun Kapoor, Sanjay Dutt, Kriti Sanon, Mohnish Behl, Padmini Kolhapure, Zeenat Aman
Rating 3 /5 stars
Ashes 2019 schedule
August 1-5: First Test, Edgbaston
August 14-18: Second Test, Lord's
August 22-26: Third Test, Headingley
September 4-8: Fourth Test, Old Trafford
September 12-16: Fifth Test, Oval
COMPANY%20PROFILE
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T20 WORLD CUP QUALIFIERS
Qualifier A, Muscat
(All matches to be streamed live on icc.tv)
Fixtures
Friday, February 18: 10am Oman v Nepal, Canada v Philippines; 2pm Ireland v UAE, Germany v Bahrain
Saturday, February 19: 10am Oman v Canada, Nepal v Philippines; 2pm UAE v Germany, Ireland v Bahrain
Monday, February 21: 10am Ireland v Germany, UAE v Bahrain; 2pm Nepal v Canada, Oman v Philippines
Tuesday, February 22: 2pm Semi-finals
Thursday, February 24: 2pm Final
UAE squad:Ahmed Raza(captain), Muhammad Waseem, Chirag Suri, Vriitya Aravind, Rohan Mustafa, Kashif Daud, Zahoor Khan, Alishan Sharafu, Raja Akifullah, Karthik Meiyappan, Junaid Siddique, Basil Hameed, Zafar Farid, Mohammed Boota, Mohammed Usman, Rahul Bhatia
Company%20Profile
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UAE currency: the story behind the money in your pockets
SPAIN SQUAD
Goalkeepers Simon (Athletic Bilbao), De Gea (Manchester United), Sanchez (Brighton)
Defenders Gaya (Valencia), Alba (Barcelona), P Torres (Villarreal), Laporte (Manchester City), Garcia (Manchester City), D Llorente (Leeds), Azpilicueta (Chelsea)
Midfielders Busquets (Barcelona), Rodri (Manchester City), Pedri (Barcelona), Thiago (Liverpool), Koke (Atletico Madrid), Ruiz (Napoli), M Llorente (Atletico Madrid)
Forwards: Olmo (RB Leipzig), Oyarzabal (Real Sociedad), Morata (Juventus), Moreno (Villarreal), F Torres (Manchester City), Traore (Wolves), Sarabia (PSG)
SPECS
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Company Profile
Name: Thndr
Started: 2019
Co-founders: Ahmad Hammouda and Seif Amr
Sector: FinTech
Headquarters: Egypt
UAE base: Hub71, Abu Dhabi
Current number of staff: More than 150
Funds raised: $22 million
Du Football Champions
The fourth season of du Football Champions was launched at Gitex on Wednesday alongside the Middle East’s first sports-tech scouting platform.“du Talents”, which enables aspiring footballers to upload their profiles and highlights reels and communicate directly with coaches, is designed to extend the reach of the programme, which has already attracted more than 21,500 players in its first three years.
RESULTS
6pm: Mazrat Al Ruwayah – Group 2 (PA) $40,000 (Dirt) 1,600m
Winner: AF Alajaj, Tadhg O’Shea (jockey), Ernst Oertel (trainer)
6.35pm: Race of Future – Handicap (TB) $80,000 (Turf) 2,410m
Winner: Global Storm, William Buick, Charlie Appleby
7.10pm: UAE 2000 Guineas – Group 3 (TB) $150,000 (D) 1,600m
Winner: Azure Coast, Antonio Fresu, Pavel Vashchenko
7.45pm: Business Bay Challenge – Listed (TB) $100,000 (T) 1,400m
Winner: Storm Damage, Patrick Cosgrave, Saeed bin Suroor
20.20pm: Curlin Stakes – Listed (TB) $100,000 (D) 2,000m
Winner: Appreciated, Fernando Jara, Doug O’Neill
8.55pm: Singspiel Stakes – Group 2 (TB) $180,000 (T) 1,800m
Winner: Lord Glitters, Daniel Tudhope, David O'Meara
9.30pm: Al Shindagha Sprint – Group 3 (TB) $150,000 (D) 1,200m
Winner: Meraas, Antonio Fresu, Musabah Al Muhairi
Greatest of All Time
Starring: Vijay, Sneha, Prashanth, Prabhu Deva, Mohan
Killing of Qassem Suleimani
THE BIO
Bio Box
Role Model: Sheikh Zayed, God bless his soul
Favorite book: Zayed Biography of the leader
Favorite quote: To be or not to be, that is the question, from William Shakespeare's Hamlet
Favorite food: seafood
Favorite place to travel: Lebanon
Favorite movie: Braveheart
La Mer lowdown
La Mer beach is open from 10am until midnight, daily, and is located in Jumeirah 1, well after Kite Beach. Some restaurants, like Cupagahwa, are open from 8am for breakfast; most others start at noon. At the time of writing, we noticed that signs for Vicolo, an Italian eatery, and Kaftan, a Turkish restaurant, indicated that these two restaurants will be open soon, most likely this month. Parking is available, as well as a Dh100 all-day valet option or a Dh50 valet service if you’re just stopping by for a few hours.
Inside%20Out%202
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MATCH INFO
Uefa Champions League semi-final, first leg
Bayern Munich v Real Madrid
When: April 25, 10.45pm kick-off (UAE)
Where: Allianz Arena, Munich
Live: BeIN Sports HD
Second leg: May 1, Santiago Bernabeu, Madrid
