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[BBC] - Arctic ozone loss at record level

post #1 of 49
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Quote:
Ozone loss over the Arctic this year was so severe that for the first time it could be called an "ozone hole" like the Antarctic one, scientists report.

About 20km (13 miles) above the ground, 80% of the ozone was lost, they say.

The cause was an unusually long spell of cold weather at altitude. In cold conditions, the chlorine chemicals that destroy ozone are at their most active.

It is currently impossible to predict if such losses will occur again, the team writes in the journal Nature.

Early data on the scale of Arctic ozone destruction were released in April, but the Nature paper is the first that has fully analysed the data.
Source: http://www.bbc.co.uk/news/science-environment-15105747
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post #2 of 49
Thats insane!
post #3 of 49
I blame the schools.
    
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post #4 of 49
We need to stop emitting CFC's asap.
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post #5 of 49
Quote:
Originally Posted by Stealth2o View Post
We need to stop emitting CFC's asap.
I thought we already cut down large amounts?
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post #6 of 49
Quote:
Originally Posted by IcyPimpHand View Post
I thought we already cut down large amounts?
That's what I thought too. The world scientists got together and decided that if we didn't do something about it, it would be the end of civilization. There were some law/treaty passed and last I checked, the hole was supposed to be closed decades/centuries from now.
    
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post #7 of 49
Quote:
Originally Posted by IcyPimpHand View Post
I thought we already cut down large amounts?
Maybe we have, but are there places that still use them without regulation?
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post #8 of 49
Quote:
Originally Posted by Stealth2o View Post
We need to stop emitting CFC's asap.
That means stop huffing airduster guys.
post #9 of 49
Quote:
Originally Posted by IcyPimpHand View Post
I thought we already cut down large amounts?
My understanding was that there were strict regulations placed on most of the developed world, but I don't know that the regulations exist or are enforced in newer developing areas such as India, China, etc. I could be wrong, but I don't know.
What I do know, though, is that the Chlorine and Bromine molecules are so problematic because they simply catalyze the breakdown reaction of Ozone, so they don't really get used up and go away. They can catalyze the break down of a lot of molecules before getting removed from the system, so it could just be the persistence of the existing ones that is causing problems still.
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post #10 of 49
Quote:
Originally Posted by intelfan View Post
That's what I thought too. The world scientists got together and decided that if we didn't do something about it, it would be the end of civilization. There were some law/treaty passed and last I checked, the hole was supposed to be closed decades/centuries from now.
*that was Antarctica*

google Montreal Protocol

that ozone hole is respected to recover by 2050... so yea-with a new hole opening up.... *facepalm 2012*
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Overclock.net › Forums › Industry News › Technology and Science News › [BBC] - Arctic ozone loss at record level