ozone hole
Everyone has heard of the giant hole in the Ozone above Antarctica. Also everyone knows that the blame for this phenomenon can be directly placed on the use of harmful chemicals by humans.People dispute that if CFC’s are to blame for the ozone hole why is the hole over Antarctica instead of the United States? The answer is because the sunless artic winter allows chlorine from CFC’s to separate onto small stratospheric cloud particles which can only form in the intense cold of the polar winter.
What we need to understand is that the ozone has the ability to repair itself by the year 2100 if all countries would agree to cut down on CFC production. This is why the U.S. needs to set an example and come up with new better ways to clean emissions.
posted by Anonymous @ 9/21/2006 05:33:00 PM
2 Comments:
Maybe not. CFC's are only part of the problem, making up well under half the greenhouse gases involved with warming and ozone depletion. And while there are other countries that emit CFC's, and that the US is the largest contributer, CFC's aren't the biggest emission we make. The largest source of US emissions comes out car tailpipes, which, to my knowledge, doesn't contain CFC's. If the US was to stand a Zero Emissions program like CA, we could substantially kill our emissions, but knowing the American attitude towards cars, that won't happen untill the hydrogen or battery powered SUV comes to fruition.
Nice job simplifying a complex question.
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