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The USA has banned CFC's (for almost 20 years) but not all those Kyoto accord countries have..some of them still use them extensively.
I don't know anyone who says there is no global warming, what I do know is that there is no where near conclusive evidence that it has anything to do with anything Man is doing. We may contribute a small pittance to this phenomona but it is just as likely that we are undergoing the normal cyclical temperature variences for this planet. In the past it has been far far warmer than it is currently (the Artic used to be a lush grassy plain supposedly) and it has been far colder as well.
There is currently a theory that Ocean Salinity decreases on a regular cycle (caused by among other things melting polar ice) triggers the regular cycle of ice ages. Of course its only a theory...but it is as valid as the theory that man is changing the global climate.
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