News / Science & Technology

Reports Raise Alarm About Sea Level Rise

File - An Adelie penguin stands atop a block of melting ice near the French station at Dumont d’Urville in East Antarctica Jan. 23, 2010.
File - An Adelie penguin stands atop a block of melting ice near the French station at Dumont d’Urville in East Antarctica Jan. 23, 2010.

Related Articles

Ice Loss from Antarctic Glacier Unstoppable

The glaciers in the Amundsen Sea sector of West Antarctica contain enough ice to raise the global sea level by more than a meter

US Energy Efficiency Bill Falls to Congressional Dysfunction

Energy Savings and Industrial Competitiveness Act fails to get three-fifths backing required to proceed to final vote, becoming latest victim of partisan warfare on Capitol Hill

Video As Planet Warms, Winds Keep Antarctic Cool

Westerly wind belt that circulates continent are stronger now than at any time in past 1000 years
VOA News
There were two worrying reports about sea level rise today.
 
First, scientists in Europe said that Antarctica is losing up to 176 billion tons of ice every year, based on data collected by the Cryosat spacecraft.
 
The rate of loss during 2010 to 2013 was double that from the last time a survey was done from 2005 to 2010.
 
The resulting water, scientists said, could raise sea levels up to .43 mm every year.
 
The findings were published in the journal Geophysical Research Letters.
 
In another development, NASA and scientists at the University of California, Irvine (UCI) said canyons buried under Greenland’s ice are deeper and longer than previously thought, which could mean more sea level rise as the ice in them melts.
 
"The glaciers of Greenland are likely to retreat faster and farther inland than anticipated, and for much longer, according to this very different topography we have discovered,” said Mathieu Morlighem, a UCI associate project scientist who is lead author of the new research paper in a statement.
 
While ice melt in Greenland has accelerated in recent decades, older models predicted that the ice would retreat to higher, more stable ground, slowing the melt.
 
Morlighem's discovery shows that because of the unexpected depth and length of the canyons, it will be longer before the ice melt slows.
 
Using radar penetrating radar, Morlighem and his team showed that Greenland’s southern coastline is serrated with “more than 100 canyons beneath glaciers that empty into the ocean.”
 
Some of the canyons are below sea level up to 100 kilometers inland.
 
Co-author Eric Rignot of UCI and NASA's Jet Propulsion Laboratory said in a statement that studies like this “illustrate clearly the globe’s ice sheets will contribute far more to sea level rise than current projections show.”
 
Rignot and his team also released a study last week that said ice melt in western Antarctica was “unstoppable.”
 
The results were published Sunday in the journal Nature Geoscience.

Here's a video about the Greenland canyons:
 

You May Like

Karzai's Legacy: Missed Opportunities?

Afghanistan's president leaves behind a much different nation than the one he inherited, yet his legacy from 13 years in power is getting mixed reviews More

Video Secret Service Chief Under Fire for White House Security Breach

Julia Pierson faces tough questions from lawmakers after recent intrusion at White House, says: 'It is clear that our security plan was not executed properly' More

Frustrated, Liberian Students Want Ebola Fight Role

Thousands have volunteered to go to counties, rural villages to talk to people in their language about deadly virus More

This forum has been closed.
Comment Sorting
Comments
     
by: steven ward from: jackson, tn
May 21, 2014 4:45 PM
Agree with the spirit of this article but has someone missed some figures? 1 standard inch is 25.4 mm. If the sea were to rise .43 mm, this would convert to .43/25.4 or 0.017 inch. This would be about the equivalent of 1/64 inch. Did you mean 43 mm?

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Malaysia Struggles to Stop People Joining Jihadi
X
Mahi Ramakrishnan
September 30, 2014 2:16 PM
Malaysian authorities say militant groups like the so-called "Islamic State" have used social media to entice at least three dozen Malaysian Muslims to fight in what they call "jihad" in Syria and Iraq. As Mahi Ramkrishnan reports from Kuala Lumpur, counterterrorism police are deeply worried about what could happen when these militants return home.
Video

Video Malaysia Struggles to Stop People Joining Jihad

Malaysian authorities say militant groups like the so-called "Islamic State" have used social media to entice at least three dozen Malaysian Muslims to fight in what they call "jihad" in Syria and Iraq. As Mahi Ramkrishnan reports from Kuala Lumpur, counterterrorism police are deeply worried about what could happen when these militants return home.
Video

Video Could US Have Done More to Stop Rise of Islamic State?

President Obama says airstrikes against Islamic State militants in Syria will likely continue for some time because, in his words, "there is a cancer that has grown for too long." So what if President Obama had acted sooner in Syria to arm more-moderate opponents of both the Islamic State and the Syrian government? VOA State Department Correspondent Scott Stearns reports from the United Nations.
Video

Video Treasure Hunters Seek 'Hidden Treasure' in Central Kenya

Could a cave in a small village in central Kenya be the site of buried treasure? A rumor of riches, left behind by colonialists, has some residents dreaming of wealth, while others see it as a dangerous hoax. VOA's Gabe Joselow has the story.
Video

Video Iran's Rouhani Skeptical on Syria Strikes

Iranian President Hassan Rouhani expressed skepticism Friday that U.S.-led airstrikes in Iraq and Syria could crush Islamic State militants. From New York, VOA’s Margaret Besheer reports the president was also hopeful that questions about Iran’s nuclear program could be resolved soon.
Video

Video US House Speaker: Congress Should Debate Authorization Against IS

As wave after wave of U.S. airstrikes target Islamic State militants, the speaker of the Republican-controlled House of Representatives says he would be willing to call Congress back into session to debate a formal, broad authorization for the use of military force. VOA’s Michael Bowman reports from Washington, where legislators left town 10 days ago for a seven-week recess.
Video

Video Ebola Patients Find No Treatment at Sierra Leone Holding Center

At a holding facility in Makeni, central Sierra Leone, dozens of sick people sit on the floor in an empty university building. They wait in filthy conditions. It's a 16-hour drive by ambulance to Kailahun Ebola treatment center. Adam Bailes was there and reports on what he says are some of the worst situations he has seen since the beginning of this Ebola outbreak. And he says it appears case numbers may already be far worse than authorities acknowledge.
Video

Video Identifying Bodies Found in Texas Border Region

Thousands of immigrants have died after crossing the border from Mexico into remote areas of the southwestern United States in recent years. Local officials in south Texas alone have found hundreds of unidentified bodies and buried them in mass graves in local cemeteries. Now an anthropologist and her students at Baylor University have been exhuming bodies and looking for clues to identify them. VOA’s Greg Flakus has more from Waco, Texas.
Video

Video Ebola Robs Liberians of Chance to Say Good-Bye to Loved Ones

In Liberia, where Ebola has killed more than 1,500 people, authorities have worked hard to convince people to allow specialized burial teams to take away dead bodies. But these safety measures, while necessary, make it hard for people to say good bye to their loved ones. VOA's Anne Look reports on the tragedy from Liberia.
Colonel Steve ‘Spiros’ Pisanos left Greece and came to the U.S. to learn to fly. He flew fighters for the Allies in World War II, narrowly escaping death multiple times.Colonel Steve ‘Spiros’ Pisanos left Greece and came to the U.S. to learn to fly. He flew fighters for the Allies in World War II, narrowly escaping death multiple times.

AppleAndroid