Showing posts with label Greenland. Show all posts
Showing posts with label Greenland. Show all posts
Thursday, August 12, 2010
Glacier melt in our hot, hot Summer and what it might mean
Greenland Ice Sheet Faces 'Tipping Point in 10 Years'
Scientists warn that temperature rise of between 2C and 7C would cause ice to melt, resulting in 23ft rise in sea level
by Suzanne Goldenberg
WASHINSTON - The entire ice mass of Greenland will disappear from the world map if temperatures rise by as little as 2C, with severe consequences for the rest of the world, a panel of scientists told Congress Tuesday.
An enormous chunk of ice, roughly 97 square miles in size, has broken off the Petermann Glacier along the northwest coast of Greenland. Greenland shed its largest chunk of ice in nearly half a century last week, and faces an even grimmer future, according to Richard Alley, a geosciences professor at Pennsylvania State University
"Sometime in the next decade we may pass that tipping point which would put us warmer than temperatures that Greenland can survive," Alley told a briefing in Congress, adding that a rise in the range of 2C to 7C would mean the obliteration of Greenland's ice sheet.
The fall-out would be felt thousands of miles away from the Arctic, unleashing a global sea level rise of 23ft (7 metres), Alley warned. Low-lying cities such as New Orleans would vanish.
"What is going on in the Arctic now is the biggest and fastest thing that nature has ever done," he said.
From a different article and source yesterday, too: Since 1970, temperatures have risen more than 4.5 degrees (2.5 degrees C) in much of the Arctic — much faster than the global average. In June the Arctic sea ice cover was at the lowest level for that month since records began in 1979, according to the National Oceanic and Atmospheric Administration.
Back to me: Two plus two is starting to look like four, folks.
Link to original posts: http://www.commondreams.org/headline/2010/08/11-1
http://news.yahoo.com/s/ap/20100810/ap_on_sc/eu_ice_island
Wednesday, August 11, 2010
No good news today?
A sampling of headlines today:
--The Fed is worried about the economy;
--Russian wildfires raise Chernobyl radiation fears;
--Huge ice island could pose threat to oil, shipping;
--Primary winners highlight political inexperience;
--Greenland Ice Sheet Faces 'Tipping Point in 10 Years';
I wish going back to bed were an option. I wish that option could make this stuff go away.
Think positive thoughts, people! Keep cool and have a great day, anyway.
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