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

    Video Democrats Clinton, Kaine Offer 'Very Different Vision' Than Trump

    In a jab at Trump, Clinton says her team wants to 'build bridges, not walls'; Obama Hails Kaine's record; Trump calls Kaine a 'job-killer'

    Turkey Wants Pakistan to Close Down institutions, Businesses Linked to Gulen

    Thousands of Pakistani students are enrolled in Gulen's commercial network of around two dozen institutions operating in Pakistan for over two decades

    AU Passport A Work in Progress

    Who will get the passport and what the benefits are still need to be worked out

    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.
    In State of Emergency, Turkey’s Erdogan Focuses on Spiritual Movementi
    X
    July 22, 2016 11:49 AM
    The state of emergency that Turkish President Recep Tayyip Erdogan has declared is giving him even more power to expand a purge that has seen an estimated 60,000 people either arrested or suspended from their jobs. VOA Europe correspondent Luis Ramirez reports from Istanbul.
    Video

    Video In State of Emergency, Turkey’s Erdogan Focuses on Spiritual Movement

    The state of emergency that Turkish President Recep Tayyip Erdogan has declared is giving him even more power to expand a purge that has seen an estimated 60,000 people either arrested or suspended from their jobs. VOA Europe correspondent Luis Ramirez reports from Istanbul.
    Video

    Video Scientists in Poland Race to Save Honeybees

    Honeybees are in danger worldwide. Causes of what's known as colony collapse disorder range from pesticides and loss of habitat to infections. But scientists in Poland say they are on track to finding a cure for one of the diseases. VOA’s George Putic reports.
    Video

    Video Wall Already Runs Along Parts of US-Mexico Border

    The Republican Party’s presidential nominee, Donald Trump, gained the support of many voters by saying he would build a wall to keep undocumented immigrants and drugs from coming across the border from Mexico. Critics have called his idea impractical and offensive to Mexico, while supporters say such a bold approach is needed to control the border. VOA’s Greg Flakus has more from the border town of Nogales, Arizona.
    Video

    Video New HIV Tests Emphasize Rapid Results

    As the global fight against AIDS intensifies, activists have placed increasing importance on getting people to know their HIV status. Some companies are developing new HIV testing methods designed to be quick, easy and accurate. Thuso Khumalo looks at the latest methods, presented at the International AIDS conference in Durban, South Africa.
    Video

    Video African Youth with HIV Urge More Support

    HIV, the virus that causes AIDS, is the top killer of teens in sub-Saharan Africa. But many youths say their experience with the virus is unique and needs to be addressed differently than the adult epidemic. VOA South African Correspondent Anita Powell reports.
    Video

    Video Poor Residents in Cleveland Not Feeling High Hopes of Republican Convention

    With the Republican Party's National Convention underway in Cleveland, Ohio, delegates and visitors are gathered in the host city's downtown - waiting to hear from the party's presidential candidate, Donald Trump. But a few kilometers from the convention's venue, Cleveland's poorest residents are not convinced Trump or his policies will make a difference in their lives. VOA's Ramon Taylor spoke with some of these residents as well as some of the Republican delegates and filed this report.
    Video

    Video Pop-Up Art Comes to Your Living Room, Backyard and Elsewhere

    Around the world, independent artists and musicians wrestle with a common problem: where to exhibit or perform? Traditional spaces such as museums and galleries are reserved for bigger names, and renting a space is not feasible for many. Enter ArtsUp, which connects artists with venue owners. Whether it’s a living room, restaurant, office or even a boat, pop-up events are bringing music and art to unexpected places. Tina Trinh has more.
    Video

    Video With Yosemite as Backdrop, Obama Praises National Parks

    Last month, President Barack Obama and his family visited some of the most beautiful national parks in the U.S. Using the majestic backdrop of a towering waterfall in California's Yosemite National Park, Obama praised the national park system which celebrates its 100th anniversary this year. He talked about the importance of America’s “national treasures” and the need to protect them from climate change and other threats. VOA’s Julie Taboh reports.
    Video

    Video Counter-Islamic State Coalition Plots Next Steps

    As momentum shifts against Islamic State in Iraq, discussions are taking place about the next steps for driving the terrorist group from its final strongholds. Secretary of State John Kerry is hosting a counter-IS meeting at the State Department, a day after defense ministers from more than 30 countries reviewed and agreed upon a course of action. VOA Pentagon correspondent Carla Babb reports.
    Video

    Video Russia's Participation at Brazil Olympic Games Still In Question

    The International Olympic Committee has delayed a decision on whether to ban all Russian teams from competing in next month's Olympic Games in Brazil over allegations of an elaborate doping scheme. The World Anti-Doping Agency recently released an independent report alleging widespread doping by Russian athletes at the 2014 Winter Olympics in Sochi. So far, only Russian track and field athletes have been barred from the Summer Games in Brazil. VOA's Zlatica Hoke has more.
    Video

    Video Scotland’s Booming Whisky Industry Fears Brexit Hangover

    After Britain’s vote to leave the European Union, Scotland’s government wants to break away from the United Kingdom – fearing the nation’s exports are at risk. Among the biggest of these is whisky. Henry Ridgwell reports on a time of turmoil for those involved in the ancient art of distilling Scotland’s most famous product.
    Video

    Video Millennials Could Determine Who Wins Race to White House

    With only four months to go until Americans elect a new president, one group of voters is getting a lot more attention these days: those ages 18 to 35, a generation known as millennials. It’s a demographic that some analysts say could have the power to decide the 2016 election. But a lot depends on whether they actually turn out to vote. VOA’s Alexa Lamanna reports.

    Special Report

    Adrift The Invisible African Diaspora