Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

pampango

(24,692 posts)
Mon Aug 27, 2012, 05:39 PM Aug 2012

BBC: Arctic sea ice reaches record low, Nasa says

The Arctic has lost more sea ice this year than at any time since satellite records began in 1979, Nasa says. Scientists involved in the calculations say it is part of a fundamental change.

Joey Comiso, senior research scientist at Nasa's Goddard Space Flight Center, said this year's ice retreat was caused by previous warm years reducing the amount of perennial ice - which is more resistant to melting. It's created a self-reinforcing trend. "Unlike 2007, temperatures were not unusually warm in the Arctic this summer. [But] we are losing the thick component of the ice cover," he said. "And if you lose [that], the ice in the summer becomes very vulnerable."

"Measurements from submarines have shown that it has lost at least 40% of its thickness since the 1980s, and if you consider the shrinkage as well it means that the summer ice volume is now only 30% of what it was in the 1980s," he added.

"This means an inevitable death for the ice cover, because the summer retreat is now accelerated by the fact that the huge areas of open water already generated allow storms to generate big waves which break up the remaining ice and accelerate its melt.

http://www.bbc.co.uk/news/science-environment-19393075

The volume of ice in the Arctic is only 30% of what it was in 1980 and the rate at which it disappears is accelerating. One senses that nothing will change since any action to deal with global warming involves sacrifice and pain. It looks like humans do not want to make the sacrifice that is necessary for the long run health of the planet.
4 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
BBC: Arctic sea ice reaches record low, Nasa says (Original Post) pampango Aug 2012 OP
Conspiracy theory alarmist! joeybee12 Aug 2012 #1
Remember those predictions about the Arctic being ice-free in the summer by 2030 - 2050? truebrit71 Aug 2012 #2
Another sign that human eradication is inevitable. JRLeft Aug 2012 #3
Don't expect to hear about this on the mainstream news. JRLeft Aug 2012 #4
 

joeybee12

(56,177 posts)
1. Conspiracy theory alarmist!
Mon Aug 27, 2012, 05:43 PM
Aug 2012


Go to Yahoo and read the comments there...seriously braindead people posting.
 

truebrit71

(20,805 posts)
2. Remember those predictions about the Arctic being ice-free in the summer by 2030 - 2050?
Mon Aug 27, 2012, 05:44 PM
Aug 2012

Yeah...that's most likely going to happen THIS decade (I reckon before 2015)...roughly 10 -15 years earlier than the previous 'worst-case' scenario...The tipping point? That's in the rear-view mirror...

Latest Discussions»General Discussion»BBC: Arctic sea ice reach...