Didya know?

Didya know that we have a HUGE ozone hole under Antarctica because of the gases we have and the polution. United States is the #1 ranking of poluting then any other country.

Science: The Antarctic Ozone Hole

The Antarctic Ozone Hole was discovered by the British Antarctic Survey from data obtained with a ground-based instrument from a measuring station at Halley Bay, Antarctica, in the 1981-1983 period. They reported the October ozone loss in 1985. Satellite measurements then confirmed that the springtime ozone loss was a continent-wide feature.

Research conducted during the National Ozone Expeditions to the U.S. McMurdo Station in 1986 and 1987, and NASA stratospheric aircraft flights into the Antarctic region from Chile in 1987 showed conclusively that the ozone loss was related to halogen (chlorine)-catalyzed chemical destruction which takes place following spring sunrise in the Antarctic polar region. The chlorine is derived from manmade chlorofluorocarbons (CFCs) which have migrated to the stratosphere and have been broken down by solar ultraviolet light, freeing chlorine atoms.

The ozone hole is formed each year in the Southern Hemisphere spring (September-November) when there is a sharp decline (currently up to 60%) in the total ozone over most of Antarctica. During the cold dark Antarctic winter, stratospheric ice clouds (PSCs, polar stratospheric clouds) form when temperatures drop below -78C. These clouds are responsible for chemical changes that promote production of chemically active chlorine and bromine. When sunlight returns to the Antarctic in the Southern Hemisphere spring, this chlorine and bromine activation leads to rapid ozone loss, which then results in the Antarctic ozone hole. Although some ozone depletion also occurs in the Arctic during the Northern Hemisphere spring (March-May), wintertime temperatures in the Arctic stratosphere are not persistently low for as many weeks which results in less ozone depletion.

Owing to regulations on the production and use of certain ozone-destroying chlorinated compounds, which went into effect in January 1996, the atmospheric concentration of some of these man-made substances has begun to decline. Chlorine/bromine should reach maximum levels in the stratosphere in the first few years of the 21st century, and ozone concentrations should correspondingly be at their minimum levels during that time period. It is anticipated that the recovery of the Antarctic Ozone Hole can then begin. But because of the slow rate of healing, it is expected that the beginning of this recovery will not be conclusively detected for a decade or more, and that complete recovery of the Antarctic ozone layer will not occur until the year 2050 or later. The exact date of recovery will depend on the effectiveness of present and future regulations on the emission of CFCs and their replacements. It will also depend on climate change in the intervening years, such as long-term cooling in the stratosphere, which could exacerbate ozone loss and prolong recovery of the ozone layer.

Although increasing greenhouse gas concentrations in the atmosphere may result in warmer surface temperatures, colder temperatures are expected to occur in the stratosphere. In fact, temperatures in the lower stratosphere, as measured by NOAA's Microwave Sounding Unit, have cooled during the past 22-years, the length of the satellite record. Colder stratospheric temperatures can enhance ozone loss through their affect on the formation of polar stratospheric clouds which in turn promote chlorine-caused ozone destruction

from::http://www.ozonelayer.noaa.gov/science/ozhole.htm

What I'm saying is that if we all continue to polute[sp?] the ozone hole under Anarctica (the ozone hole is the SIZE of Anarctica!!) that global warming will come and some of us would die of either flooding or other ozone holes will start popping up and frying the he_l out of us!

What do u think?

Its going to get worse and worse.Not only the ozone layer but everything else in the world. Man Is on a oneway street to destruction. Death is Ravenous at the door.

Crunkz,

I never even heard it last year so don't be sayin that it's last years news. School never taught us anything about that last year. Everyone in my World Geography just learned it today!

"Yes, I did know that. That's last year's news."

I'm sorry but i have to agree, this kind of news is everywhere. =/
But well done for raising awareness

I watched the Inconvenient Truth, and wow its amazing how much we have done to this poor Earth - what sux more is that as long as the rich who work to benifit the rich are in power, the Earth will continue to rot.

Ozone depletion and global warming are completely different things!. . .At least thats whats I've been taught, I just skimmed the post. . .

Ozone depletion is caused by CFCs which break up O3's(ozone. . .but they were banned in 1988.. . totally. . .

Global warming is caused by pollution and greenhouse gasses. . .which heat up the atmosphere and cause freak weath flooding etc. . .

the ozone is slowly recovering now CFCs have been banned but there are still holes left. . .There is not an awaful lot of it. . .it would just about poke above your carpet at ground level (at normal pressure). . .

ok maybe i should have read the post but this is what i know. . .

Queen,

BLAME IT ON THE DAMN SCHOOLS HERE. WE WERE NEVER TAUGHT ABOUT THIS AND EVERYONE IN THE FRESHMAN GRADE THAT WENT TO THIS CERTIAN MIDDLE SCHOOL FOR 3 YEARS, WE WERE NEVER TAUGHT ABOUT THIS.

Indeed. Soon we shall all die. I think, heh :S.

i think global warming is a MAJOR issue.. and i pisses the fuck out of me that so many people dont care because its not supposed to happen in our life time.. but thats soo selfish...

there are new lightbulbs you can buy that are better for the enviroment.. i mean its no big change.. but everything helps ....

oh and the whole "last years news" thing (btw im not critisizing the person who said this).. but thats also part of the problem in my opinion.. its old new to a lot of people and it seems that its just being forgotten...

and OMGOSH i LOVED THE INCONVENIANT TRUTH!!! i friggen love Al Gore.. he should've been the president... stupid electoral votes.. AHHH lol :P

and about the whole Kyoto Agreement.. i could be wrong but i think that we did end up agreeing to it... its just that we're still the ones doing the most harm to the planet

HUG TREES AND STOP GLOBAL WARMING :D !!

You don't have to be taught something in school to know about it.

It's not on our syllabus to lean about global warming and the ozone layer and such, but I know about it from watching the news, and I've known about it for years.