warm sea water melting Antarctic ice

Discussion in 'News / Current Events' started by billwald, Apr 27, 2012.

  1. billwald

    billwald
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    http://www.livescience.com/19914-antarctic-ice-melt.html

    Scientists have long known that the wide platforms of ice extending from the southernmost continent have been shrinking away. But what's behind the melting hasn't been clear — whether warm ocean currents or surface winds have a bigger impact on the ice.

    Now, a new satellite survey of Antarctica places the blame largely on the water. "In most places in Antarctica, we can't explain the ice-shelf thinning through melting of snow at the surface," said study team member Hamish Pritchard of the British Antarctic Survey in a statement. "So it has to be driven by warm ocean currents melting them from below." [Images: Tracking a Retreating Glacier]

    The team's results represent the culmination of a massive international effort to observe the loss of Antarctic ice from the skies. Using NASA's ICESat satellite, the researchers closely monitored how the thickness of West and East Antarctica's ice changed over time. In some cases, Pritchard said, shelves thinned by as much as several meters each year. And the pattern of that melting, he added, suggested that at least 20 out of 54 observed platforms of ice across the continent were being melted largely by the oceans below, much like a warm drink consuming ice cubes.

    http://www.livescience.com/19930-water-cycle-global-warming-ocean-salt.html


    Global warming is revving up the planet's cycle of evaporation and precipitation, making wet places even wetter and dry places dryer, a new study suggests.
     
  2. targus

    targus
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    Were I live the area was once under hundreds of feet of ice.

    Did the cavemen cause global warming too?

    BTW all that melted ice is now called Lake Michigan.
     
  3. LadyEagle

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    Except just this week:

    "Influential scientist James Lovelock admits that he’s been a bit of an alarmist (read: fear-monger) when it comes to matters of global warming and climate change. Though he wouldn’t call himself a “denier” by any stretch of the imagination, he concedes that the earth really hasn’t changed as much as he apocalyptically predicted it would, and throws other environmental activists under the bus as well, including Al Gore.

    “Before this century is over billions of us will die and the few breeding pairs of people that survive will be in the Arctic where the climate remains tolerable,” he said back in 2006. Now, 6 years later, he told MSNBC that he had been “extrapolating too far,” in recent years.

    A favorite of the environmental movement, Lovelock is probably best-known for his “Gaia” model of the earth as a single organism. < snip >"


    Read more at http://www.inquisitr.com/224934/glo...its-to-being-an-alarmist/#QL4t0wJFHb79XtYZ.99

    Ah, well, some of never believed the hoax, anyway....
     
  4. billwald

    billwald
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    I re-read both stories and neither mentioned any cause for climate change. The stories were about the effect.
     
  5. HankD

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    I wonder if subconsciously he meant "exploiting too far".

    HankD
     
  6. LadyEagle

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    :laugh: :laugh: :laugh:
     
  7. billwald

    billwald
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