Trillions of tons of melting ice in Antarctica raising sea levels

Hamish Pritchard summer clouds swirl around the Staccato Peaks of Alexander Island off the Antarctic Peninsula. In a study released Wednesday

According to the experts, the accelerated rate of ice loss has been caused by a combination of glacier speedup in West Antarctica and at the Antarctic Peninsula, and reduced growth of the ice sheet in East Antarctica.

"Even though Antarctica is far from most human civilization, its ice sheet is losing mass to the ocean, and is an increasing contribution to sea-level rise, which will have large impacts on coastlines all around all the world", said Helen Amanda Fricker, a glaciologist at Scripps.

The satellites measure the height of the ice sheets and the speed at which they move towards the sea, which allows scientists to deduce the total amount of ice from that data.

"The contribution of the Antarctic Ice Sheet is now the greatest source of uncertainty in projections of global mean sea level rise", Dr Bennetts said. Antarctica is, on balance, losing its ice sheets and raising the world's sea levels.

Benjamin Smith, senior principal investigator at the University of Washington Applied Physics Laboratory, said climate scientists are getting a better handle on crucial questions relating to the impact of Antarctic melting, thanks to more advanced satellites. But there are so many different papers that it's hard to know which number to use, he said.

The melting of Antarctica is accelerating at an alarming rate, with about 3 trillion tons of ice disappearing since 1992, an worldwide team of ice experts said in a new study.

The study was conducted by a group of researchers as part of the Ice Sheet Mass Balance Inter-comparison Exercise, or IMBIE, and published today in the journal Nature.

The scientists used satellite data that relied on three different methods, measuring its volume, its flow over the landscape and its gravitational attraction. It shows that before 2012, the Antarctic lost ice at a steady rate of 76bn tonnes per year - a 0.2mm per year contribution to sea-level rise. The rapid increase in Antarctic ice loss and consequent sea level rise we have measured over the past 25 years are a clear indicator of climate change.

"We've all been caught by surprise by the pace of which Antarctic ice loss has increased", Shepherd said. Antarctica, the planet's largest ice sheet, lost 219 billion tons of ice annually from 2012 through 2017 - a number that rose from only 73 billion in 2008.

More news: In the United States , the volcano monster green crystals

"We are learning that ice shelves are more vulnerable to rising ocean and air temperatures than we thought", said Dow.

The next step, he added, will be to perform the same analysis for Greenland, to see where these northern ice reserves now stand.

Another study in Nature on Wednesday found that East Antarctic ice sheet didn't retreat significantly 2 million to 5 million years ago when heat-trapping carbon dioxide levels were similar to what they are now.

The Antarctic Ice Sheet covers an area of about 14 million square kilometres; by comparison, the area of Australia is about 7.7 million square kilometres, and that of the US is about 9.8 million square kilometres.

An additional increase in ice losses came from the smaller glaciers of the Antarctic Peninsula, which are also melting rapidly but contain less sea level rise potential.

More than 70 percent of the recent melt is in West Antarctica.

"We can not count on East Antarctica to be the quiet player, and we start to observe change there in some sectors that have potential and they're vulnerable", said Velicogna.

They also said governments should take note.

Rising sea levels pose a major threat to ecosystems, coastal areas and climate as a whole.

Related News:

  • Beyonce Calls Out Jay-Z's Cheating on 'LoveHappy' Lyrics & Stream

    The album is available exclusively on Tidal-the streaming service partly owned by the Carters . The album features Beyonce rapping on songs more than she has done on previous releases.
    Eid al-Fitr being celebrated with fervour today

    Eid al-Fitr being celebrated with fervour today

    Surveys show that no single racial or ethnic group accounts for a majority among the 3.45 million Muslims in the U.S. However, Muslims in remaining parts of the country saw the moon on May 16 and began fasting for Ramadan from May 17.
    Johnson in U.S. Open command after second round 67

    Johnson in U.S. Open command after second round 67

    Stenson played with him in the final round at Shanghai a year ago when Johnson lost a six-shot lead in the final round. Opens. "The pressure is at its highest, and it's just one of those tournaments that's very hard to play well and win".
  • Steve Bannon Enters the Crypto market, Plans to Launch Own Virtual Coin

    Steve Bannon Enters the Crypto market, Plans to Launch Own Virtual Coin

    Apparently, Bannon is trying to make his way into the world of cryptocurrencies using his own investment firm, Bannon and Company. There are those deep in the world of crypto and blockchain that are anxious about Bannon's presence in the space.
    Giuliani Suggests Mueller Probe Should Be Suspended, FBI Official Jailed Over Texts

    Giuliani Suggests Mueller Probe Should Be Suspended, FBI Official Jailed Over Texts

    On June 14, Giuliani called for Robert Mueller's investigation to be suspended. It was critical of former Director James Comey , calling him "insubordinate".
    Stosur knocked out by No.156 in Nottingham

    Stosur knocked out by No.156 in Nottingham

    Defending champion Donna Vekic recorded a 6-2 7-6 (6) win over Belarusian Vera Lapko and will next take on Germany's Mona Barthel. In the ATP Challenger, Evans will play Canadian qualifier Brayden Schnur, followed by Ward's clash with No4 seed, Ilya Ivashka.
  • Zach Randolph: Brother of Kings big man killed in Indiana

    Zach Randolph: Brother of Kings big man killed in Indiana

    Police do not know the circumstances of the shooting, but it was believed to be an isolated incident and not a random attack. Zach Randolph grew up in Marion, which is about 60 miles (97 kilometers) northeast of Indianapolis.
    Gay activist released after World Cup protest

    Gay activist released after World Cup protest

    He said he has requested that his court appearance be voided and added that he plans to fly back to the United Kingdom on June 18. Protesting in public without permission from authorities is strictly prohibited in Russian Federation .
    White House Assistant Press Secretary Kelly Love To Leave Job

    White House Assistant Press Secretary Kelly Love To Leave Job

    White House Secretary Sarah Sanders on Wednesday repealed the reports of her leaving the White House. Karem exclaimed. "They have less than you do!" You're a parent.
  • Millie Bobby Brown skipping MTV Movie Awards after 'milestone' injury

    Millie Bobby Brown skipping MTV Movie Awards after 'milestone' injury

    Brown, herself is nominated for Best Performance in a Show and Best Kiss (which she shared with castmate Finn Wolfhard ). According to TheWrap, the tag first appeared in November but resurfaced in June to coincide with Pride Month.

    Jay-Z and Beyonce Release Surprise Joint Album on Tidal

    It also serves as the first new music from Beyoncé since her career-defining LP, Lemonade , which was released in April 2016. Beyonce reportedly also announced the new album , entitled " Everything is Love ", during a Saturday performance in London.
    2,000 Families Separated After Being Caught Crossing Border Illegally

    2,000 Families Separated After Being Caught Crossing Border Illegally

    Darylle Sheehan said she went to the rally because she believes there is no reason to take the children from their parents. The Trump administration's "zero tolerance" policy has been widely criticized, even by figures in the president's base .

Most liked

Banksy print stolen from Toronto's west end
Mr Lazarides worked with the Bristol graffiti artist for about 10 years, though Banksy himself is not involved in the show.

Nadal Stomps Thiem For 11th French Open Title, 17th Grand Slam Victory
I felt that I was playing a little bit under more stress than usual, and he was able to take control of the point too many times. However, you will never hear Nadal echo similar brash confidence despite his straight-sets win over Dominic Thiem in the final.

Trump imposes 25 per cent duties on $50bn worth of Chinese goods
The U.S. imported more than $2.7 billion in Chinese seafood a year ago , and the U.S. exported more than $1.3 billion to China. But he signaled that whatever the implications, "I have to do what I have to do" to address the trade imbalance.

Drake returns to ‘Degrassi’ for ‘I’m Upset’ music video
Oh, Drake also unleashed the release date and cover art for his upcoming album Scorpion via his Twitter. And everyone of course got teary-eyed over the cast singing the theme song over the end credits.

29-pound shelter cat needs a home
The well-fed cat , who was given his nickname by the Humane Society was matted and in desperate need of grooming. Because it's kitten season, the shelter has been flooded with felines looking for homes and fosters.

Taxi runs into crowd in central Moscow, injuring eight
Russian media are reporting that the fans were made up of Mexican supporters waiting to watch their team play Germany tomorrow. Moscow Police said the driver likely lost control of the vehicle rather than deliberately steering his auto into pedestrians.

#NoBan4Women banner grabs eyeballs in Iran’s win
Iran face Spain in their next Group B match on June 20, before playing Portugal five days later. It will be the 21st FIFA World Cup. "I think it's my duty to say, 'Let my boys play football".

Kasper Schmeichel, Denmark Hold off Peru for 2018 World Cup Win
Peru created 14 chances in the match to Denmark's five, with Cueva and Carrillo creating the joint-most on the pitch (four each). Now, Peru must hope they can break down France's defence next Thursday, or face an exit from the World Cup after two games.

17 people killed in nightclub brawl
However, he said the owner permitted weapons into the club that threatened the "integrity" of the establishment. Eight people were detained, including two teens believed responsible for setting off the tear gas canister.

New coach reveals plan to get ball in Kyle Lowry's hands more
The Raptors won a franchise-record 59 games in 2017-18 and entered the playoffs with the No. 1 seed in the Eastern Conference. The Raptors will introduce Nick Nurse as their new head coach at 2:30 PM on Thursday at the Air Canada Centre.

Spains says France to take in Aquarius ship migrants
This has placed a significant burden in recent years on the countries where most undocumented migrants arrive. But he sought Thursday to cool the tensions, saying that "none of his comments were meant to offend Italy".

Roger Federer beats Nick Kyrgios to regain no 1 ranking
Bidding for his 18th grass-court title, Federer was pushed all the way by the fourth-seeded Kyrgios, who had 23 aces. Roger Federer returns the ball to Nick Kyrgios in their semifinal.

Russian Federation warns Norway of 'consequences' after it invites in more US Marines
Some 330 U.S. marines are now stationed in Norway after arriving in January 2017 to train for fighting in winter conditions. In times of crisis and war Norway will rely on USA and other allied military reinforcements.

Donald Trump Wants Attention Like Kim Jong Un Gets From North Koreans
Trump has said he trusts Kim to follow through as the two countries negotiate dismantling North Korea's nuclear program. He can now call me if he has any difficulty. "I can now call him", he said.

Murray to make competitive return against Kyrgios next week
Should Murray win, he may face British number one Kyle Edmund who plays American Ryan Harrison in the first round. French Open champion Rafael Nadal withdrew Wednesday from Queen's in an attempt to be ready for Wimbledon .