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The Rise of 'Super' Greenhouse Gases

The chemicals that replaced ozone-depleting substances in refrigerators, air conditioners and insulating foam have been found to possess heat-trapping power hundreds or thousands of times that of carbon dioxide. And scientists say the problem is growing: If the world doesn't decrease these emissions, they could undermine any progress made in reducing other greenhouse gases.

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Chemicals That Eased One Woe Worsen Another
Article | This is not the funny kind of irony: Scientists say the chemicals that helped solve the last global environmental crisis -- the hole in the ozone layer -- are making the current one worse.

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