The Clinton Herald, Clinton, Iowa

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

  • 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

  • Google acquires drone maker Titan Aerospace to spread Internet

    Google is adding drones to its fleets of robots and driverless cars.
    The Internet search company said it acquired Titan Aerospace, the maker of high-altitude, solar-powered satellites that provides customer access to data services around the world. Terms of the deal weren't disclosed.

    April 14, 2014

  • watching-tv.jpg Cutting the cord on cable TV, and not missing it a bit

    Three years ago, Royse City Herald Banner reporter Chris McGathey and his family decided to ditch pay TV in favor of Netflix, Hulu Plus and other cheaper web-based services. It's a decision they haven't regretted.

    April 3, 2014 1 Photo

  • spt_baylor.jpg VIDEO: Angels hitting coach suffers bizarre leg injury

    LA Angels hitting coach Don Baylor suffered a broken leg while squatting to catch a ceremonial first pitch from former Angel Vladimir Guerrero on Opening Day.

    April 2, 2014 1 Photo

  • barbour021614.jpg Sibling says Dexter drama motivated sister's 'lie' of mass murder

    The older sister of Miranda Barbour, who claims she murdered more than 22 "bad people" over six years, says the story is a lie that stems from infatuation with the Showtime TV series about a Miami cop who leads a secret life as a serial killer.

    April 1, 2014 1 Photo 3 Stories

  • Fact Checker: 'Birth control' for something other than family planning?

    "When 99 percent of women used birth control in their lifetime and 60 percent use it for something other than family planning, it's outrageous and I think the Supreme Court will suggest that their case is ridiculous."

    March 31, 2014

  • dog-sunglasses.jpg Do animals have a sense of humor?

    Right now, in a high-security research lab at Northwestern University's Falk Center for Molecular Therapeutics, scientists are tickling rats. Their goal? To develop a pharmaceutical-grade happiness pill. But their efforts might also produce some of the best evidence yet that humor isn't something experienced exclusively by human beings.

    March 28, 2014 1 Photo

  • touch.jpg Divorce is on the rise, and it's the baby boomers' fault

    A new paper from demographers at the University of Minnesota found that the age-standardized divorce rate has actually risen by an astonishing 40 percent since 1980.

    March 28, 2014 1 Photo

  • firefighters.jpg VIDEO: Firefighters sing song from 'Frozen' to calm girl stuck in elevator

    Firefighters in Reading, Mass., sing the Disney power ballad known by children everywhere -- "Let It Go" -- to calm a 4-year-old stuck in an elevator.

    March 28, 2014 1 Photo

Elections
Front page
Clinton Herald Photos


Browse, buy and submit pictures with our photo site.

Poll

Should the city of Clinton appeal the open records violation ruling that will cost taxpayers $40,600?

Yes
No
     View Results
AP Video
Olympics 2014
Featured Comment
Featured Ads
Blue Zones Project
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.