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2003 Antarctic Ozone Hole Equals Record Size
Space Daily ^
| 09/17/2003
Posted on 09/17/2003 10:31:26 AM PDT by cogitator
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The headlines were a bit over-the-top. Bottom line: it will still take some time for the ozone layer to replenish as CFC concentrations in the stratosphere slowly decline.
1
posted on
09/17/2003 10:31:37 AM PDT
by
cogitator
To: cogitator
So I guess getting rid of all that R12 was just a big waste of time?
2
posted on
09/17/2003 10:34:15 AM PDT
by
gore_sux
(and so does Xlinton)
To: gore_sux
So I guess getting rid of all that R12 was just a big waste of time?Actually not; the article notes that improvements are being measured. It just takes time for the Earth system to react to them.
3
posted on
09/17/2003 10:36:11 AM PDT
by
cogitator
To: All
I'm not anti-environment, but I have never seen any documentation/proof that there was NOT an ozone hole at the South Pole to begin with. If elimation of R-12 is the answer, I'm all for it, but it would be nice if I could see the "before" info, that demonstrates beyond a doubt, (sorry, but I distrust anything from the anti-Capitalist crowd, aka the "Greens").
4
posted on
09/17/2003 10:41:09 AM PDT
by
Malcolm
To: cogitator
There is no "hole." There is a "thinning" or depletion of the ozone layer.
This is caused by the low amount of sunlight in Anartica during its winter, since sunlight causes oxygen to ionize into ozone.
This has nothing to do with CFC's or Freon, but a lot to do with sunlight.
Got science?
5
posted on
09/17/2003 10:43:28 AM PDT
by
ido_now
To: cogitator
I have a physicist friend whose specialty for a number of years was observations from Antartica. He said that his evidence showed no sign of growth in the ozone hole.
Another friend who oversees grants said that only scientists who believe in a growing ozone hole are now awarded any grant money to study it.
So, I suspect that this is probably a one-time event that has nothing to do with growth in the hole. As we all know, weather and atmospheric phenomena don't obey handy little charts. They are unpredictable, at least by present knowledge.
6
posted on
09/17/2003 10:46:14 AM PDT
by
Cicero
(Marcus Tullius)
To: cogitator
Cool, a new record. It is going to be hard to beat this one, but if we try hard enough, I am sure that we can.
7
posted on
09/17/2003 10:47:41 AM PDT
by
Between the Lines
("What Goes Into the Mind Comes Out in a Life")
To: ido_now
There is no "hole." There is a "thinning" or depletion of the ozone layer.This is caused by the low amount of sunlight in Anartica during its winter, since sunlight causes oxygen to ionize into ozone.
This has nothing to do with CFC's or Freon, but a lot to do with sunlight.
You are incorrect on this subject. The "ozone hole" refers to drastically lowered ozone concentrations in the Antarctic stratosphere above the winter polar vortex, due to the reactions of chlorine with ozone that are catalytically enhanced on ice crystals in polar clouds.
If you would really like to "get science", I recommend this outstanding Web site on the subject:
The Ozone Hole Tour. Part 3, "The Science of the Ozone Hole", will be of particular interest to you.
8
posted on
09/17/2003 10:51:45 AM PDT
by
cogitator
To: Malcolm
but it would be nice if I could see the "before" info, that demonstrates beyond a doubt,I'm not sure what you're looking for. If you want to see what the measurements of the ozone layer (in Dobson units) looked like before the impact of CFCs began to take effect, here's the data:
This is from The History Behind the Ozone Hole
9
posted on
09/17/2003 10:55:18 AM PDT
by
cogitator
To: Cicero
He said that his evidence showed no sign of growth in the ozone hole.That probably depends on what kind of data he has. The lowest concentrations don't go any lower, but the area of decreased ozone concentration is what is assessed in terms of ozone hole "growth" or "shrinkage".
To: cogitator
How come we didn't hear word one about this when Clinton was president?
To: cogitator
Actually, I think that ido_now is correct. Not looking for a fight, but atmospheric mixing between the northern and southern hemisphere is very limited. Since almost all sources and uses of CFCs and Freon are in the northern hemisphere, normal atmospheric transport would concentrate these chemicals at the North pole, not the South pole. The fact that there is thinning at the South and not at the North is a pretty strong indicator that Man has nothing to do with it.
Now there is a very strong correlation between volvanic avtivity and ozone thinning in the respective hemisphere, particularly if the valvanoes in question are very active and generate a lot of chlorine. Measurable ozone thinning in the north did occurr, for example, after the very large Mt Pinatubo eruption. It just happens that the most active volcanoe in the world is Mt Erabus in, you guessed it, Antarctica. It's been more or less continuously erupting for decades.
12
posted on
09/17/2003 11:04:28 AM PDT
by
jscd3
To: jscd3
Man, I am one lousy speller :)
13
posted on
09/17/2003 11:05:56 AM PDT
by
jscd3
To: ido_now
Got science? In the news this morning was the note that American pupils rank 15th in industrialized societies for ability in the 3 Rs, Reading, Math, and Science. But we're up to date with PC and dating protocol. Looks like American pre-eminence in the world is drawing to an end; that type of social evolution is usually concluded with a sudden overruning and complete destruction of the society.
14
posted on
09/17/2003 11:09:25 AM PDT
by
RightWhale
(Repeal the Law of the Excluded Middle)
To: cogitator
The headlines were a bit over-the-top. Bottom line: it will still take some time for the ozone layer to replenish as CFC concentrations in the stratosphere slowly decline. Ozone, eh? That's the stuff that is created by sunshine isn't it?
Antarctica is due to receive some sunshine now after having it on backorder for six months.
Odd how this "hole" shows up more during the long Antarctic night.
15
posted on
09/17/2003 11:10:11 AM PDT
by
N. Theknow
(Clemson University plays possum football...They play dead at home and get killed on the road.)
To: Sunshine Sister
How come we didn't hear word one about this when Clinton was president?Look, it's obvious:
1. All news about the ecology is bad news.
2. All bad news about the ecology is caused by the rich Republicans.
3. We've got to raise taxes before the ecology gets even with us.
To: cogitator
Bottom line: it will still take some time for the ozone layer to replenish as CFC concentrations in the stratosphere slowly decline.
Why do you push this B.S.? Try reading "The Holes in the Ozone Scare."
17
posted on
09/17/2003 11:13:55 AM PDT
by
saminfl
To: gore_sux
Worth repeating, 1 & a 2,
So I guess getting rid of all that R12 was just a big waste of time?
All the bogus & scary "Reefer Madness" research can be traced to cloaked industry sponsorship.
18
posted on
09/17/2003 11:13:57 AM PDT
by
norraad
To: cogitator
Surely, Bush is to blame.
19
posted on
09/17/2003 11:13:57 AM PDT
by
rintense
(9-11-01: Never Forget.)
To: cogitator
Bottom line: it will still take some time for the ozone layer to replenish as CFC concentrations in the stratosphere slowly decline.
Why do you push this B.S.? Try reading "The Holes in the Ozone Scare."
20
posted on
09/17/2003 11:13:57 AM PDT
by
saminfl
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