Antarctica Loses Trillions of Tons of Ice Since 1992, Report Reveals

Experts monitoring the ice levels have revealed that Antarctica is losing 200 billion tonnes a year of ice.

Forget yesterday's news. Get what you need today in this early-morning email.

An global team of researchers, including scientists from NASA and ESA (European Space Agency), published their findings in the journal Nature Wednesday.

"The detailed record shows an acceleration, starting around 2002, " said Beata Csatho, one of the study authors and a glaciologist at the State University of NY at Buffalo, in an email.

So what accounts for the apparent three-fold speed up in Antarctica's melting in the last five years? And 40% of that loss happened in the last five years.

At the rate that Antarctica is melting, the sea level could rise by 15 centimeters or six inches by 2100 - enough to flood Brooklyn 20 times per year, according to Shepherd.

Ice mass loss is clearly speeding up, driven largely by what's going on in West Antarctica. It also means the ice cliffs at the snout of those glaciers are getting taller and more prone to collapse. Antarctica is, on balance, losing its ice sheets and raising the world's sea levels.

Shepherd told Newsweek that there is a combination of factors that have led to the increased rate of ice loss in recent years, all of which are indicators of climate change.

That's a lot of ice. Of the three, the East Antarctic Ice Sheet is the largest potential contributor to sea level rise.

The latest study settles an old argument: the combined evidence suggests that East Antarctica is more or less stable, gaining if anything 5bn tonnes a year on average, perhaps because of greater snowfall. We suggest that Antarctic ice volume variations in response to the range of global temperature experienced over this period - up to 2-3 ̊C above preindustrial, which correspond to future scenarios with Carbon dioxide concentrations between 400 and 500 ppm - are instead driven mostly by retreat of marine ice margins, in agreement with the latest models.

On current trends, Antarctica could become the single largest source of sea level rise, ahead of runoff from the Greenland ice sheet and mountain glaciers, and the expansion of ocean water as it warms, the study found.

More news: Sylvester Stallone under investigation by Los Angeles district attorney for sex assault

"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.

The research was done by taking data from satellites that have been flying over the Antarctic region for 25 years. In fact, if all of Antarctica melted, global sea levels would rise by more than 58 meters (190 feet) to cover major coastal metropolitans and create new shorelines.

Already floating, ice shelves breaking off into icebergs do not add to sea level.

"Actions can be taken now that will slow the rate of environmental change, increase the resilience of Antarctica, and reduce the risk that we commit to irreversible changes with widespread impact".

"Satellites have given us an fantastic, continent-wide picture of how Antarctica is changing", said Dr. Pippa Whitehouse, a member of the IMBIE team from Durham University, according to a University of Leeds press release.

The changes will not be steady, in any case, said Knut Christianson, an Antarctic researcher at the University of Washington in Seattle, by email. 'Things are happening. They are happening faster than we expected'. So we should expect "periods of stability interspersed with rapid retreat, " he said.

Lead author Andrew Shepherd of the University of Leeds told NPR that prior to 2012, Antarctica's ice losses had been contributing a "relatively small proportion" to global sea level rise.

We're nowhere near that point yet. Over the coming decades, rising sea levels from melting ice and the expansion of warming oceans will strain societies and economies worldwide.

This new knowledge will help us better predict sea level rise in the future. This week's issue of Nature features several other reports on Antarctica and its future.

They also highlight the existential threat facing low-lying coastal cities and communities home to hundreds of millions of people.

Related News:



Most liked

Double blow for Liverpool in transfer pursuit of two goalkeepers
Roma have recently done business with the Reds, with Liverpool FC having signed Mohamed Salah from the Italian club last summer. Alisson himself revealed a few days ago that there could be news on his future before the World Cup.

De Niro apologizes to Canada for "idiotic behavior" of Trump
Echoing Trump's sentiments, White House trade adviser Peter Navarro also spoke harshly about Trudeau on Fox News over the weekend. But Kevin Sorbo, star of the hit faith-based movie "God's Not Dead", took exception to De Niro's speech.

The Shining sequel casts Ewan Mcgregor as Danny Torrance
Stanley Kubrick directed the original adaptation of " The Shining ", starring Jack Nicholson and Shelley Duvall . Ewan McGregor can be seen later this year in Disney's Christopher Robin alongside Hayley Atwell.

National Weather Service to determine if tornado hit town
Wednesday, and touched down near Mundy Street and Highland Park Boulevard near the Wyoming Valley Mall. A Panera Bread restaurant in the Arena Hub shopping area in Wilkes-Barre Township.

Target Working to Remove Controversial 'Baby Daddy' Father's Day Card
According to Fox News , the cards first caught wind around May 31, when a shopper posted an image of the cards on Facebook . She took her anger to social media, and others followed suit. "It's never our intent to offend any of our guests".

Golden oldies? Argentina have World Cup's oldest squad
The striker nearly single-handedly rescued his country's qualifying campaign to ensure they made it to Russian Federation . And finally, in 2014, he was denied a chance to win the trophy as captain when losing to the Germans for a third time .

KKR is buying Envision Healthcare in a nearly $10B deal
Moving averages can help smooth out these erratic movements by removing day-to-day fluctuations and make trends easier to spot. For example, a projected EPS growth stands at -430.10% in this year, while for the next years it is estimated at 12.11%.

Donald Trump nominated for Nobel Peace Prize by two Norwegian lawmakers
Trump was nominated by two right-wing members of Norway's Progress Party, which advocates for limited immigration and lower taxes. But while a Nobel award would cause consternation among Trump's critics, he also has some high-profile supporters.

Death Stranding Game's E3 Trailer Unveils Léa Seydoux, Lindsay Wagner in Cast
Yeah, none of this makes sense and I'm even more confused about Death Stranding as an actual game and what you even do in it. In addition to this, the trailer also introduces two new female characters played by Lea Seydoux and Sandy Wagner.

Eyewitness images reveal devastation of Colorado wildfires (PHOTOS, VIDEOS)
The fire destroyed 14 unoccupied structures at the Boy Scouts' Philmont Ranch overnight as it burned near Highway 64 in Ute Park. Springtime predictions of a wild summer of blazes across the state appear to be proving themselves true - and with a fervor.

Daemon X Machina Is A Stylish Mech Game Coming to the Switch
Kicking Nintendo's E3 press conference off was the announcement of a mech battle title in the style in Gundam and Armoured Core. Meanwhile, the game's lead character designer is Yusuke Kozaki, who was attached to the making of " Fire Emblem Awakening ".

Robbie Williams flips off the camera at the opening ceremony
After so much hard work, suddenly the whole world is gathered in your backyard to celebrate their love for football. The opening ceremony was followed by the first match between hosts Russian Federation and Saudi Arabia.

Pompeo: Trump North Korea tweet was done with 'eyes wide open'
Pompeo is scheduled to fly to Beijing to meet his Chinese counterpart after the meetings in Seoul . It was the first time a sitting USA president met face to face with a North Korean leader.

Stranger Things' Millie Bobby Brown Deletes Twitter Account After Homophobic Memes
Star of Stranger Things Millie Bobby Brown left Twitter after she became the subject of a series of homophobic memes. There's a history of users bullying public figures on social media, until they've decided they've had enough.

Pressure grows on Merkel to tighten refugee policies
Reps not to endorse the Communique as we look at Tariffs on automobiles flooding the U.S. Russian Federation was kicked out in 2014 because of its occupation of Crimea .