27 Jul '12, 1pm

Extreme summer storms could tear us a new ozone hole

Extreme summer storms could tear us a new ozone hole

Storm clouds move in over New York City during yesterday’s derecho. Remember that big hole in the ozone over the South Pole? Beginning in the 1980s, we plugged it up. And we often look to that success as a guide for how to save the environment. Identify the problem, develop a solution, enact international policies that address it. By severely limiting chlorofluorocarbons (CFCs), we preserved the ozone layer, which is critical to blocking harmful ultraviolet radiation. We didn’t actually eliminate all CFCs from the atmosphere. There are still CFCs up there, combining with oxygen in the ozone layer and breaking it down. But the combination has generally been stable. Until climate change came along. From The New York Times : Strong summer thunderstorms that pump water high into the upper atmosphere pose a threat to the protective ozone layer over the United States, researcher...

Full article: http://grist.org/news/extreme-summer-storms-could-tear-us...

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