Ice melting at a faster rate

Discussion in 'Environment' started by Chris, Dec 17, 2008.

  1. Chris
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    Chris Gold Member

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    (CNN) -- Between 1.5 trillion and 2 trillion tons of ice in Greenland, Antarctica and Alaska has melted at an accelerating rate since 2003, according to NASA scientists, in the latest signs of what they say is global warming.

    Using new satellite technology that measures changes in mass in mountain glaciers and ice sheets, NASA geophysicist Scott Luthcke concluded that the losses amounted to enough water to fill the Chesapeake Bay 21 times.

    "The ice tells us in a very real way how the climate is changing," said Luthcke, who will present his findings this week at the American Geophysical Union conference in San Francisco, California.

    NASA's Gravity Recovery and Climate Experiment, or GRACE, mission uses two orbiting satellites to measure the "mass balance" of a glacier, or the net annual difference between ice accumulation and ice loss.

    "A few degrees of change [in temperature] can increase the amount of mass loss, and that contributes to sea level rise and changes in ocean current," Luthcke said.

    The data reflects findings from NASA colleague Jay Zwally, who uses different satellite technology to observe changing ice volume in Greenland, the Arctic and Antarctica.

    In the past five years, Greenland has lost between 150 gigatons and 160 gigatons each year, (one gigaton equals one billion tons) or enough to raise global sea levels about .5 mm per year, said Zwally, who will also present his findings at the conference this week.

    Ice melting across globe at accelerating rate, NASA says - CNN.com
     
    Last edited: Dec 17, 2008
  2. Angel Heart
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    Angel Heart Conservative Hippie

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    IPCC is as closed minded as you are.
     
  3. Lycurgus
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    Lycurgus Who is Obama, really...??

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    Chris, I think you should email this breaking news to Al Gore right way. He is counting on you! :eek:
     
  4. RetiredGySgt
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    RetiredGySgt Platinum Member

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    Yup, And if we believe the doom and gloom crowd the North and South Pole should already be deserts, How many years in a row can the ice be melting even faster before someone asks, "wait, how much Ice is up there?"

    Remind us Chris, was the North pole Ice free this last summer? I mean you all insisted it was gonna be. Explain why it is that Antarctica is GAINING ice cover when you all keep telling us it is melting?
     
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  5. Lycurgus
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    Lycurgus Who is Obama, really...??

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    You know, I'm a nature freak. I really enjoy everything about nature, be it hunting or fishing, on down to simple bird watching. I really feel that we have an obligation to be good stewards of this planet, but, we also need to be logical, realistic and understand that there is a balance and moderation between advancement and properly caring for our world.

    We also need to understand and be aware of the self serving BS which goes with many things, nature caving included. Be it about money, power or people simply wanting to feel overly important.
     
  6. editec
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    editec Mr. Forgot-it-All

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  7. Old Rocks
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    Old Rocks Diamond Member

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    Sarge remind us why you keep repeating that Antarctica is gaining ice, when in fact it is losing ice.
    NASA - Antarctic Ice Loss Speeds Up, Nearly Matches Greenland Loss
     
  8. user_name_guest
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    user_name_guest Member

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    This is a perfect time to capitalize on going "green." All you have to do is put a label on your product, pay big bucks to experts to say "I endorsed this product." Hell, if they capitalize on Christmas, let's capitalize on global warming. Especially when toddlers are programmed of the idea of cutting back pollution. We already have a strong market growing in this arena. Now if we have a problem with a competitor, we can use a government agency to tag those market share grabbers with a Swastika, i meant pollution tag.
     
    Last edited: Dec 17, 2008
  9. Skeptik
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    Skeptik Astute observer

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    A picture is worth a thousand words. Here are my first thousand words:

    [​IMG]

    And, the ice being added to Antarctica has more to do with precipitation than melting. That continent is plenty cold enough for ice, and is also a desert in terms of average precipitation.

    You can ignore global climate change if you want. It really doesn't matter, since there is little we could do, and even less that we will do.
     
  10. Missourian
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    Missourian Gold Member

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    And had you stood in Dubuque, Iowa 14,000 years ago and watched those glaciers that formed the great plains recede, I'm sure you would have told us the sky was falling.

    The environment is not static.
    If it was, Missouri would still be at the bottom of a shallow ocean.
     

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