Meridian Star

Community News Network

July 15, 2013

Sea levels may increase more than 6 feet for each degree of global warming

LONDON —

Sea levels may rise by more than 2 meters (6.6 feet) for each degree Celsius of global warming the planet experiences over the next 2,000 years, according to a study by researchers in five nations.
The research, published Monday in the Proceedings of the National Academy of Sciences, attempts to iron out the impact of short-term fluctuations in sea levels, examining changes over a longer term for which forecasts are more certain.
The findings signal that melting of ice in the Antarctic will take over from thermal expansion, where warmer water occupies more space, as the main cause of rising seas. In the worst-case scenario examined, a temperature gain of 4 degrees Celsius (7.2 Fahrenheit) would result in seas rising by about 9 meters since industrialization began in the 18th century.
"Continuous sea-level rise is something we cannot avoid unless global temperatures go down," Anders Levermann, the lead author of the study, said by email from the Potsdam Institute for Climate Impact Research in Germany, where he is based. "We need to adapt. Sea-level rise might be slow on time scales on which we elect governments, but it is inevitable and therefore highly relevant for almost everything we build along our coastlines, for many generations to come."
Temperatures already have climbed about 0.8 degree and seas have risen about 17 centimeters since the industrial revolution, according to the United Nations. When temperature gains reach 1 degree, the world will be committed to sea levels about 2.3 meters higher over two millennia, according to the study in the journal of the Washington-based National Academy of Sciences.
 About 1.6 meters of that will come from ice melting in Antarctica, 40 centimeters from the natural expansion of the sea as it gets warmer, 20 centimeters from mountain glaciers and 10 centimeters from Greenland, it said.
In the 4-degree scenario, Antarctica would add 4.8 meters to sea levels over 2,000 years, thermal expansion would contribute 1.7 meters and mountain glaciers and small ice caps would add 45 centimeters.
Greenland would contribute 2.1 meters, though it would be destabilized to the point that a further 4.9 meters is possible if all the ice there melted over the next few thousand years.
Researchers from Germany, the United States, Canada, Spain and Austria also contributed to the study. They used computer models and analysis of past trends in sea levels derived from sediments and raised ancient shorelines to make their predictions.
 
 
 
 

1
Text Only
Community News Network
  • Smartphone kill switches are coming

    Smartphones need kill switches. It's a relatively easy solution to the pricey (and irritating) problem of smartphone theft. But who would have thought that the big carriers would team up with Apple, Google, Microsoft, Nokia, Samsung and lots of other manufacturers to voluntarily begin adding the technology by July 2015? The cooperative spirit! It makes so much sense!

    April 18, 2014

  • Why do wolves howl?

    Of all the myths that dog the wolf, none is more widely accepted than the idea that wolves howl at the moon. Images of wolves with their heads upturned, singing at the night sky, are as unquestioned as a goldfish's three-second memory or a dog's color-blindness (both also myths).

    April 18, 2014

  • Biggest student loan profits come from grad students

    This week, the Congressional Budget Office projected that the federal government would earn roughly $127 billion from student lending during the next 10 years.

    April 18, 2014

  • quake.jpg Pennsylvania won’t take action following Ohio ruling on quakes, fracking

    Pennsylvania officials plan no action despite new Ohio rules on drilling that affect a seismically active area near the state line.

    April 18, 2014 1 Photo

  • VIDEO: Boston bomb scare defendant appears in court

    The man accused of carrying a backpack containing a rice cooker near the Boston Marathon finish line on the anniversary of the bombings was arraigned Wednesday. He's being held on $100,000 bail.

    April 17, 2014

  • Consumer spending on health care jumps as Affordable Care Act takes hold

    Nancy Beigel has known since September that she would need hernia surgery. She couldn't afford it on her $11,000 yearly income until she became eligible for Medicaid in January through President Barack Obama's signature health care law.

    April 17, 2014

  • The case for separate beds

    The other night I slept on a twin bed in the guest room of the house I share with my husband and our two kids.
    It was the best night's sleep I've had in years.

    April 17, 2014

  • Raw oysters spike U.S. rise in bacterial infections, CDC reports

    Raw oysters, so good with hot sauce, increasingly can carry something even more unsettling to the stomach: A bacteria linked to vomiting, diarrhea and pain.

    April 17, 2014

  • To sleep well, you may need to adjust what you eat and when

    Sleep.  Oh, to sleep.  A good night's sleep is often a struggle for more than half of American adults.  And for occasional insomnia, there are good reasons to avoid using medications, whether over-the-counter or prescription.

    April 16, 2014

  • Doctors to rate cost effectiveness of expensive cancer drugs

    The world's largest organization of cancer doctors plans to rate the cost effectiveness of expensive oncology drugs, and will urge physicians to use the ratings to discuss the costs with their patients.

    April 16, 2014

Biz Marquee
New Today
Poll

Do you think it is inhumane to euthanize a dog with a pellet gun?

Yes
No
     View Results
Facebook
Facebook
Twitter Updates
Follow us on twitter
AP Video
Raw: More Than 100,000 Gather for Easter Sunday Raw: Greeks Celebrate Easter With "Rocket War" Police Question Captain, Crew on Ferry Disaster Raw: Orthodox Christians Observe Easter Rite Ceremony Marks 19th Anniversary of OKC Bombing Raw: Four French Journalists Freed From Syria Raw: Massive 7.2 Earthquake Rocks Mexico Captain of Sunken SKorean Ferry Arrested Raw: Fire Destroys 3 N.J. Beachfront Homes Raw: Pope Presides Over Good Friday Mass Raw: Space X Launches to Space Station Superheroes Descend on Capitol Mall Man Charged in Kansas City Highway Shootings Obama Awards Navy Football Trophy Anti-semitic Leaflets Posted in Eastern Ukraine Raw: Magnitude-7.2 Earthquake Shakes Mexico City Ceremony at MIT Remembers One of Boston's Finest Raw: Students Hurt in Colo. School Bus Crash Deadly Avalanche Sweeps Slopes of Mount Everest
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide