Scientists repair damage to ozone layer

Saigon

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May 4, 2012
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At last - a good news story on the environment!

Thanks to the ban on CFCs in aerosols - which I imagine many posters here ridiculed and opposed - the hole in ozone layer is getting smaller. By 2050, the hole should be gone altogether.


A University of Canterbury atmospheric researcher this week revealed that New Zealand's ozone hole - responsible for a 14 per cent jump in melanoma over the past decade - is shrinking for the first time in 30 years.

"Ozone levels above Antarctica are projected to return to 1980 levels - previous to the ozone hole - after 2050," said Dr Adrian McDonald.

NZ scientists' role in CFC ban profound, says environmental body - National - NZ Herald News
 
Shhhhh............... Say it quietly, or the wingnuts here will be bemoaning the fact that we are polluting the upper stratosphere with ozone.
 
It's also a required belief among the denialist political cult to deny CFC ozone depletion theory. Totally barking insane, but they have to deny it, or they get purged from the cult, and that's like a death sentence to a denialist herdbeast.

Why? Because it demonstrates a case of scientists being absolutely correct in their consensus, and then pushing to implement political solutions that prevented a catastrophe. It makes scientists look good, therefore it enrages denialists.
 
They launched an 2,000 mile long pair of Gargoyle sunglasses into a blocking position between Earth and that Big yellow Thing in the Sky
 
That hole has gotten smaller in the past. And it has gotten bigger. This time last year it was bigger.

Ozone layer hole over Arctic in sudden expansion | Environment | guardian.co.uk

Yes it was foolish to believe that a housewife in New Jersey could affect the ozone layer with her hairspray.

Of course having no hole in the ozone layer increases global warming. So maybe we should all start using hairspray!
Ozone hole healing could cause further climate warming

The hole may actually be caused by global COOLING. Maybe we should all get out there and drive around in circles and throw those plastic bottles away.

Ozone hole above the Arctic has actually been caused by COLD weather | Mail Online

The facts are, environmentalists are wackos who foretell "climate change" by throwing bones and reading the entrails of dead chickens.
 
The normal dumb fucks on the board, demonstrating the depth of their ignorance, as usual,

Press Release: The 1995 Nobel Prize in Chemistry

The Nobel Prize in Chemistry 1995

Paul J. Crutzen, Mario J. Molina, F. Sherwood Rowland


The Nobel Prize in Chemistry 1995

Nobel Prize Award Ceremony

Paul J. Crutzen

Mario J. Molina

F. Sherwood Rowland

Press Release

11 October 1995

The Royal Swedish Academy of Sciences has decided to award the 1995 Nobel Prize in Chemistry to

Professor Paul Crutzen, Max-Planck-Institute for Chemistry, Mainz, Germany (Dutch citizen),

Professor Mario Molina, Department of Earth, Atmospheric and Planetary Sciences and Department of Chemistry, MIT, Cambridge, MA, USA and

Professor F. Sherwood Rowland, Department of Chemistry, University of California, Irvine, CA, USA

for their work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone.

The ozone layer - The Achilles heel of the biosphere

The atmosphere surrounding the earth contains small quantities of ozone - a gas with molecules consisting of three oxygen atoms (O3). If all the ozone in the atmosphere were compressed to a pressure corresponding to that at the earth's surface, the layer would be only 3 mm thick. But even though ozone occurs in such small quantities, it plays an exceptionally fundamental part in life on earth. This is because ozone, together with ordinary molecular oxygen (O2), is able to absorb the major part of the sun's ultraviolet radiation and therefore prevent this dangerous radiation from reaching the surface. Without a protective ozone layer in the atmosphere, animals and plants could not exist, at least upon land. It is therefore of the greatest importance to understand the processes that regulate the atmosphere's ozone content.

Paul Crutzen, Mario Molina and Sherwood Rowland have all made pioneering contributions to explaining how ozone is formed and decomposes through chemical processes in the atmosphere. Most importantly, they have in this way showed how sensitive the ozone layer is to the influence of anthropogenic emissions of certain compounds. The thin ozone layer has proved to be an Achilles heel that may be seriously injured by apparently moderate changes in the composition of the atmosphere. By explaining the chemical mechanisms that affect the thickness of the ozone layer, the three researchers have contributed to our salvation from a global environmental problem that could have catastrophic consequences.
 
The men that identified the problem with the CFC's were instrumental in getting these chemicals banned in most nations.

The fact that you don't know that simply reinforces the image of a total dullard that you project.
 
The men that identified the problem with the CFC's were instrumental in getting these chemicals banned in most nations.

The fact that you don't know that simply reinforces the image of a total dullard that you project.
Yet the ozone hole has both shrunk and grown several times between then and now.

Even so, identifying something is not equal to doing any active repair to anything.

But it's not surprising to me that total dullards like you can't make such distinctions.
 
Yet the ozone hole has both shrunk and grown several times between then and now.

That hole has gotten smaller in the past. And it has gotten bigger. This time last year it was bigger.

Don't you guys grimace when you post this stuff?!

You must know it's false, you must know your only point in posting at all is political. I can't imagine how that must feel.

The ozone hole grew very rapidly between 1979 and 2007. As such rates of skin cancer rose 14% in New Zealand - the worst effected country.

In 1979 the ozone layer meaured 225 DUs. In 1984 it measured 94. It is now back up to 106, and rising.

In 1979, there was no ozone hole. By 1984 it meaured 27 million sq.kms. It is now 25 million sq.kms, and falling.

CFCs were banned in 1987. Since 2007, there has been a slow but significant decine in the size of the hole.

The Ozone Hole-Ozone Hole History

http://en.wikipedia.org/wiki/Chlorofluorocarbon
 
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That hole has gotten smaller in the past. And it has gotten bigger. This time last year it was bigger.

Don't you guys grimace when you post this stuff?!

You must know it's false, you must know your only point in posting at all is political. I can't imagine how that must feel.

In 1979 the ozone layer meaured 225 DUs. In 1984 it measured 94. It is now back up to 106, and rising.

So it has gotten bigger and smaller Why grimace?
 
getting rid of CFCs was a good thing. reducing pollution is a good thing. the skeptical side is just as strongly in favour of environmental stewardship as the alarmists. we just know that CO2 is not a pollutant itself, and that the costs and unintended consequences of CO2 mitigation with our present technology outweigh the benefits.
 
The normal dumb fucks on the board, demonstrating the depth of their ignorance, as usual,

Press Release: The 1995 Nobel Prize in Chemistry

The Nobel Prize in Chemistry 1995

Paul J. Crutzen, Mario J. Molina, F. Sherwood Rowland


The Nobel Prize in Chemistry 1995

Nobel Prize Award Ceremony

Paul J. Crutzen

Mario J. Molina

F. Sherwood Rowland

Press Release

11 October 1995

The Royal Swedish Academy of Sciences has decided to award the 1995 Nobel Prize in Chemistry to

Professor Paul Crutzen, Max-Planck-Institute for Chemistry, Mainz, Germany (Dutch citizen),

Professor Mario Molina, Department of Earth, Atmospheric and Planetary Sciences and Department of Chemistry, MIT, Cambridge, MA, USA and

Professor F. Sherwood Rowland, Department of Chemistry, University of California, Irvine, CA, USA

for their work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone.

The ozone layer - The Achilles heel of the biosphere

The atmosphere surrounding the earth contains small quantities of ozone - a gas with molecules consisting of three oxygen atoms (O3). If all the ozone in the atmosphere were compressed to a pressure corresponding to that at the earth's surface, the layer would be only 3 mm thick. But even though ozone occurs in such small quantities, it plays an exceptionally fundamental part in life on earth. This is because ozone, together with ordinary molecular oxygen (O2), is able to absorb the major part of the sun's ultraviolet radiation and therefore prevent this dangerous radiation from reaching the surface. Without a protective ozone layer in the atmosphere, animals and plants could not exist, at least upon land. It is therefore of the greatest importance to understand the processes that regulate the atmosphere's ozone content.

Paul Crutzen, Mario Molina and Sherwood Rowland have all made pioneering contributions to explaining how ozone is formed and decomposes through chemical processes in the atmosphere. Most importantly, they have in this way showed how sensitive the ozone layer is to the influence of anthropogenic emissions of certain compounds. The thin ozone layer has proved to be an Achilles heel that may be seriously injured by apparently moderate changes in the composition of the atmosphere. By explaining the chemical mechanisms that affect the thickness of the ozone layer, the three researchers have contributed to our salvation from a global environmental problem that could have catastrophic consequences.

As I recall the Nobel gave Obama a Peace prize before he was even President and did anything.
 

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