What is Digg?133 Comments
- floronicman, on 10/09/2008, -0/+62The year was 2002 and the earth discovers its mutant healing factor. If only for a moment....
- inactive, on 10/10/2008, -8/+642007 - 1979 = 28
28 = nearly 20?
Just saying. - mehtheinfernal, on 10/10/2008, -0/+31Shhhhh some of us were born around '79. We're trying to make ourselves feel younger.
Nearly 20! - k3ndal1, on 10/10/2008, -5/+36I wanted this to be interesting but...it's not.
- amauldin71, on 10/10/2008, -11/+38Goatse?
- mouthymadness, on 10/10/2008, -0/+23No you go away. He's right, what dingbat wrote this.
- Shabatoo, on 10/10/2008, -3/+23***** it...we're fine
- Motherfuhrer, on 10/09/2008, -4/+24No, it was the sign from God who was blessing the American invasion on Iraq...
- thegrantman, on 10/10/2008, -7/+25"Nearly 20 years"?
1979-2007...=28 years. - phoenix2330, on 10/10/2008, -2/+20it would be nice if there was a chart showing exactly what the colors mean
- cuevas4711, on 10/10/2008, -0/+15my favorite color is hole.
- Zalyster, on 10/10/2008, -0/+12No, after many awkward drunken experiences, a hole is definitely NOT just a hole!
- Drgn547, on 10/10/2008, -0/+11"It’s absolutely stupid that we live without an ozone layer. We have men, we’ve got rockets, we’ve got saran wrap – FIX IT!"
--Lewis Black - legoalert33, on 10/10/2008, -0/+11Now that's a big hole.
- psion01, on 10/10/2008, -0/+10I know! And Antarctica is even worse off!
[innocent grin] - enkideridu, on 05/15/2009, -0/+10That's really interesting,
My geography professor in college keeps saying that the ozone hole was one of the few things we actually managed to fix due to control of CFC emissions... - muchachoburacho, on 10/10/2008, -2/+11He's right. There isn't too much of a problem now from the ozone depletion, mainly because it's over the south pole where most of the light is reflected. The problem is it was going to continue to get worse and worse and truly affect human life of earth. With the new regulations, the ozone layer is supposed to return to 1980 levels by about 2068. It's a long time, but its important to note that the situation is under control and the ozone layer can heal itself.
http://en.wikipedia.org/wiki/Ozone_hole#Public_pol ... - ancientdinko, on 10/10/2008, -0/+8Ozone depletion is occurring all over the world. The hole over Antarctica is significant because :
it forms every Sept and Oct
the climate in Antarctica is more sensitive to CFCs than other parts of the world
it can be measured reliably yr after yr
less ozone means more exposure to harmful UV-b radiation
its formation is almost entirely a result of human activity. (The ozone shield itself is 600 million yrs old btw)
The negative effects of increased UV-b are skin cancer, cataracts,impaired immune systems.decreased crop production
so yeah, its kind of a big deal
you can check out the ozone level in yer own neck of the woods here:
http://jwocky.gsfc.nasa.gov/teacher/ozone_overhead ...
ATM most places in USA are around 250-300 dobsons, Antarctica is 114 - roxgod666, on 10/10/2008, -3/+11So it's unpredictable?
- grafenberg, on 10/10/2008, -0/+8In 2002 the ozone split into two holes. Maybe this has something to do with the fact that it looks as though it is thinner or smaller?
- inactive, on 10/10/2008, -2/+10My question is, how did they measure this stuff before 1975? As I recall, computer radiology and imaging technology pretty much sucked ass.
- obliviousfool, on 10/10/2008, -0/+7CFCs are very stable compounds. That is how they survive the long trip to the stratosphere in the first place. Once there, UV radiation breaks down the CFCs into various free radicals. Each free radical is capable of breaking apart over 100,000 ozone molecules. The ozone replenishes itself, but very slowly. What scientists are measuring now is the slight slowing in the depletion of the ozone. Essentially what you have is a very delayed effect. The free radicals which may be decades old keep breaking apart ozone molecules while the natural process that replaces them plods along very, very slowly.
- Iphis, on 10/10/2008, -0/+7The ozone is destroyed by cfcs, not auto emissions. http://www.ciesin.org/TG/OZ/cfcozn.html . These have been being phased out over the last 30 years but it takes time, similar to stopping all emissions would not stop global warming for another hundred. So the observation that ' that there is absolutely no correlation between the size of the hole in the ozone and emissions' would be correct. They are not related.
- bigd063, on 10/10/2008, -0/+7Hole is a hole?
- yadame, on 10/10/2008, -0/+6There is a difference between global warming and the Ozone hole. Come down to New Zealand / Australia and spend the afternoon outside.
The Ozone hole is the reason we have the highest levels of skin cancer in the world. - swgc5, on 10/10/2008, -1/+7The ozone layer has nothing to do with global warming.
- eddantes7, on 10/10/2008, -0/+6He was a year too early if you're responding to the first post... Iraq invasion was 2003...
- OneLess, on 10/10/2008, -2/+8"Nothing to see here" says Dupont.
- glberns, on 10/10/2008, -0/+6The ozone layer has little effect on global warming. The ozone layer is a layer in the atmosphere that absorbs UV radiation. When a UV photon is absorbed by a molecule of ozone, the molecule is split into two, O2 (oxygen that we breathe) and O (a single oxygen atom). The lone oxygen atom is highly reactive and sometimes joins the O2 to form ozone again, O3, and sometimes combines with another lone oxygen atom to form another O2 molecule. In any case, UV radiation is known more for 1) giving you your tan, and 2) possibly affecting the structure of DNA, and possibly mutating them into a malignant form of cancer, most probably skin cancer since UV is absorbed by the skin. The leading cause of global warming are the greenhouse gases such as CO2, carbon dioxide, and NO2, nitrogen dioxide. Both of these are mostly produced by combustion engines, such as the one in your car. CO2 is a direct result of the combustion, while the NO2 is a result of oxygen and nitrogen reacting in the air from the intense heat produced in the engine.
The ozone layer does not have much effect on global warming. So while if there were less ozone you could get a perfect golden brown tan in a few minutes, it is nice to not have to worry about skin cancer as much... - Zalyster, on 10/10/2008, -0/+6And legal!
- dasmonki, on 10/10/2008, -0/+6Slowed down? I don't have more than 30 years to watch this thing.
- nick111, on 10/10/2008, -1/+6And other lies.
I was there in the 70s, and everyone did not worry about an ice-age. The main environmental worry was overpopulation... and I'm not entirely convinced that that little problem hasn't gone away.
--
But anyway, you've looked at the evidence and decided that the global scientific community is involved in a conspiracy, and the PR fronts and think tanks funded by Exxon are not. Utterly amazing.
And this dear boy, is but one of the many reasons why everyone in the whole world thinks Americans are stupid. Please stop. For the sake of your country. Please don't try to say anything clever. - inactive, on 10/10/2008, -1/+6At 19 seconds the ozone is almost non existent! What happened?
- inactive, on 10/10/2008, -1/+6thats soooo hot
- ch4os1337, on 10/10/2008, -0/+5Don't spam plz.
- ligyron, on 10/10/2008, -2/+7Meh. Seems to be opening and closing. Nothing to see here.
- chuck667, on 10/10/2008, -2/+6and if we didn't, like, talk like we were, like, stupid teenagers, then, like, people might, like, listen to us.
- lead2thehead, on 10/10/2008, -0/+4I'm no meteorologist, but I'm pretty sure the purple part is the hole.
- phybere, on 10/10/2008, -0/+4Maybe it was the Afghanistan invasion? It had to be one of them.
- yuutokun, on 10/10/2008, -2/+6That's what she said.
- iamtrist, on 10/10/2008, -0/+4ah. he moves in mysterious ways
- acegi, on 10/10/2008, -1/+5maybe it was 9/11 and the reduced flights that occurred thereafter?
- Metasquares, on 10/10/2008, -1/+5No one cares about it because we've stopped emitting large quantities of CFCs and other ozone-depleting gasses.
If we could do the same with large quantities of CO2 and other greenhouse gasses, people would in fact stop worrying about the anthropogenic aspects of global warming, at least. - fuse13, on 10/10/2008, -0/+4Listen kids. This whole "cant put a hole in gas" is starting to annoy me.
The "hole" is actually a thinning of this layer of our atmosphere over the antarctic (south). This problem is very important to people from places like Australia and New Zealand, where the hole at its peak reached those countries, and ozone was thinner over them. Australia has the highest prevalence of skin cancer in the world (it is the most common cancer), so this is genuinely important.
http://ozonewatch.gsfc.nasa.gov/facts/hole.html
The chemicals involved are generally benign, but specific characteristics of the southern polar weather cause reactions that break down a lot of ozone.
Unlike Climate Change, serious worldwide action has been taken on the Ozone problem. - Mononuclear, on 10/10/2008, -3/+6the fact that people dugg you up makes me want to cry.
- brentinkc, on 10/10/2008, -1/+4That was like once too many
- taketheleap, on 10/10/2008, -0/+3they expect it to be receding and back to a 1980-level by 2017:
http://www.youtube.com/watch?v=qUfVMogIdr8&NR=1 - fuse13, on 10/10/2008, -1/+4OZONE HOLE. GLOBAL WARMING. DIFFERENT THINGS.
if you are going to debunk some theories you could at least pretend to know the slightest about them. Maybe google something. Seriously. - Seidoger, on 10/10/2008, -0/+3Jeez..
- nick111, on 10/10/2008, -0/+3The graph below would tend to suggest otherwise.
http://www.theozonehole.com/images/111ozone-200608 ...
http://www.theozonehole.com/
The fact is, we listened to what scientists were saying, acted globally and it looks as though we've headed off a disaster... although where I am now (NZ) the burn-time from the sun has become so fast that kids are developing rickets... that old Victorian illness that kids in mines used to get - because they don't get enough sunshine. Their parents keep them covered up.
So anyway... we listened to scientists, acted globally and it looks as though we've headed off a disaster.
And now we have global warming... and it looks as though we're not going to head off a disaster because loads of unbelievably gulliable bush-voting wankers "simply can't believe" that it's happening. -
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