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hatrack

(59,578 posts)
Sat Oct 4, 2014, 10:36 AM Oct 2014

Jason Box - Greenland Is The New Black; Lowest Reflectivity On Record For High Altitude Ice



Jason Box returned to Greenland for a few days late in August, and was able to shoot the video above. Newest observations show the lowest reflectivity on record for Greenland’s Upper elevations.

?w=480&h=384

And there’s this.

NBC News:

Spongy sediments under Greenland’s ice sheet may accelerate its flow into the sea — an effect that previous estimates of ice loss failed to account for, according to University of Cambridge researchers. They said that means the ice sheet may be more sensitive than previously thought to overall climate change, along with short-term events like heavy rain and heat waves.

The researchers said it was thought that Greenland’s extensive ice fields rested on hard bedrock, but new evidence shows that soft sediments also are present. Those sediments weaken as they soak up water from seasonal melt, allowing the sheet to move faster to the sea, the researchers said. Greenland’s ice sheet covers 660,000 square miles (1.7 million square kilometers) to a depth of nearly 2 miles (3 kilometers) at its thickest. A 2012 study found that the sheet’s melting was accelerating, and a 2013 study estimated that because of melting in Greenland and Antarctica, sea levels could be 2 feet higher when today’s preschoolers are grandparents. The research was funded by the Natural Environment Research Council and published Monday in the journal Nature Communications.


EDIT

http://climatecrocks.com/2014/10/01/august-2014-greenland-is-the-new-black/
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Jason Box - Greenland Is The New Black; Lowest Reflectivity On Record For High Altitude Ice (Original Post) hatrack Oct 2014 OP
I like to use wood ash from my wood stove to melt ice on my driveway NickB79 Oct 2014 #1
Oh that's just brilliant... truebrit71 Oct 2014 #2
Faster than expected? Surely not ... Nihil Oct 2014 #3

NickB79

(19,224 posts)
1. I like to use wood ash from my wood stove to melt ice on my driveway
Sat Oct 4, 2014, 05:14 PM
Oct 2014

Nothing tears through hard-packed ice and snow like a dusting of black/grey ash. Not even commercial salt mixes compare.

And now we've "ashed" one of the largest ice sheets on the planet. What could possibly go wrong?

 

Nihil

(13,508 posts)
3. Faster than expected? Surely not ...
Tue Oct 7, 2014, 07:50 AM
Oct 2014

> sea levels could be 2 feet higher when today’s preschoolers are grandparents

Wonder how much this new evidence is going to bring that date forwards?

Here's hoping for "as soon as possible" so that the people responsible for the
problem will start to feel the effects rather than living out their lives in wilful
ignorance & luxury ...

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