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KevO
Expert
Joined: May 24, 2005
Posts: 2394
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 Posted: Thu Aug 28, 2008 3:01 pm Post subject: Arctic ice 'is at tipping point' NOW! |
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YES FOLKS we're here, ahead of schedule. Oh well. things could be worse.
| Quote: | Arctic sea ice has shrunk to the second smallest extent since satellite records began, US scientists have revealed.
The National Snow and Ice Data Center (NSIDC) says that the ice-covered area has fallen below its 2005 level, which was the second lowest on record.
Melting has occurred earlier in the year than usual, meaning that the iced area could become even smaller than last September, the lowest recorded.
Researchers say the Arctic is now at a climatic "tipping point".
"It's tipping now. We're seeing it happen now," he told the Associated Press news agency.
That will bring economic opportunities, including the chance to drill for oil and gas. Burning that oil and gas would increase levels of greenhouse gases in the atmosphere still further. |
BBC News
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Roccland
Peak Oil Prophet
Joined: Jun 16, 2007
Posts: 1696
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| Posted: Thu Aug 28, 2008 3:03 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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wow...
And Venus was her name...
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basil_hayden
Intermediate Crude
Joined: Aug 08, 2005
Posts: 913
Location: CT, USA
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| Posted: Thu Aug 28, 2008 3:05 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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Thank goodness, finally Slushies for everybody!
So tell me, when can we see some Brit swim the Arctic Channel in some goose grease? |
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Gorm
Heavy Crude
Joined: Oct 15, 2005
Posts: 183
Location: Trollhättan, Sweden
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| Posted: Thu Aug 28, 2008 3:06 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| tipping point? Sounds a little strange.. precisly what will change a lot when this happens? |
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MadScientist
Heavy Crude
Joined: May 19, 2004
Posts: 418
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| Posted: Thu Aug 28, 2008 3:09 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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Peak Ice > Peak Oil?
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vision-master
Fusion
Joined: May 18, 2006
Posts: 4854
Location: Minneapolis, MN
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| Posted: Thu Aug 28, 2008 3:16 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| Quote: | Arctic sea ice has shrunk to the second smallest extent since satellite records began, US scientists have revealed.
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an like satellite records go back to what? Like the mid-50's. 
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Plantagenet
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Joined: Apr 09, 2007
Posts: 6370
Location: Alaska (its much bigger than Texas).
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| Posted: Thu Aug 28, 2008 3:23 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| Gorm wrote: | | tipping point? Sounds a little strange.. precisly what will change a lot when this happens? |
The loss of the Arctic sea ice will cause warming of all the Arctic and sub-Arctic. Already, its MUCH warmer in Alaska----I've spent most of the summer in shorts, except when I went on a fishing trip and visited oil facilities in Cook Inlet.
In the near term, we can expect acceleration of the melting of the Greenland Ice Sheet---in the longer term, as Greenland melts, we'll see about a 5 m (15+ foot) sea level rise. |
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leal
Heavy Crude
Joined: Oct 24, 2004
Posts: 180
Location: Sweden
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| Posted: Thu Aug 28, 2008 3:43 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| Plantagenet wrote: | | Gorm wrote: | | tipping point? Sounds a little strange.. precisly what will change a lot when this happens? |
The loss of the Arctic sea ice will cause warming of all the Arctic and sub-Arctic. Already, its MUCH warmer in Alaska----I've spent most of the summer in shorts, except when I went on a fishing trip and visited oil facilities in Cook Inlet.
In the near term, we can expect acceleration of the melting of the Greenland Ice Sheet---in the longer term, as Greenland melts, we'll see about a 5 m (15+ foot) sea level rise. |
The warming of the Arctic might cause methane discharges from the permafrost as described in this thread, created by Cid_Yama. |
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Gorm
Heavy Crude
Joined: Oct 15, 2005
Posts: 183
Location: Trollhättan, Sweden
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| Posted: Thu Aug 28, 2008 3:44 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| well this has mainly been the trend the last couple of thousand years. what is "the tipping point" when it continues as it has for thousand of years? |
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jedinvest
Heavy Crude
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Joined: Mar 09, 2007
Posts: 226
Location: No. Calif.
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| Posted: Thu Aug 28, 2008 4:01 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| Gorm wrote: | | tipping point? Sounds a little strange.. precisly what will change a lot when this happens? |
It's a scientific term of the consequences, that there will be no going back (for millions of years possibly). It is because of all the positive feedbacks that are greater than the negative feedbacks.
The engineering analog is an oscillator.
While it can't be stopped (if we are over a tipping point), I see no reason to make it happen any quicker.
What will happen is global temperatures 10-20 C higher and sea levels 100-200 m higher (I'll pulling numbers from recollection only here). But you get the gist. |
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KevO
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Joined: May 24, 2005
Posts: 2394
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| Posted: Thu Aug 28, 2008 4:05 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| jedinvest wrote: |
What will happen is global temperatures 10-20 C higher and sea levels 100-200 m higher (I'll pulling numbers from recollection only here). But you get the gist. |
yep, that's goodbye to NYC, the Eastern seaboard and obviously all coatal cities and those within 50 to 100 miles of the coast and it all began in earnest when the Arctic hit tipping point which was now 2008. thanks for all the fish
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aflurry
Intermediate Crude
Joined: Mar 28, 2005
Posts: 839
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| Posted: Thu Aug 28, 2008 4:08 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| vision-master wrote: | | Quote: | Arctic sea ice has shrunk to the second smallest extent since satellite records began, US scientists have revealed.
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an like satellite records go back to what? Like the mid-50's. |
...Extree! Extree! Read all about it. AGW debunked by snarky comment on the internet. World's scientists forced to eat own hats.... |
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TheDude
Expert
Joined: Apr 06, 2006
Posts: 3626
Location: 3 miles NW of Champoeg, Republic of Cascadia
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| Posted: Thu Aug 28, 2008 4:13 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| Roccland wrote: | wow...
And Venus was her name... |
It thought it was Bingo. 
Did someone say "economic opportunities"? Billions of people relocating will need housing. Expect surreal CNBC panel discussions soon.
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Gorm
Heavy Crude
Joined: Oct 15, 2005
Posts: 183
Location: Trollhättan, Sweden
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| Posted: Thu Aug 28, 2008 4:14 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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It began thousand of years ago, and the sealeavels were a lot lower then. One could walk from sweden to england. Were there now is ocean there were forests.
And, if I recollect correct the maximun rise of the ocean in 70 meter if all ice in the world melts. Not that it matters mutch. |
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mgibbons19
Light Sweet Crude
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Joined: Aug 20, 2004
Posts: 1093
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| Posted: Thu Aug 28, 2008 4:23 pm Post subject: Re: Arctic ice 'is at tipping point' NOW! |
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| Shipping ports on northern coasts! |
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