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: Ozone Layer Faces Bumpy Return to Health



From: Emily Sohn, Discovery News
Published April 24, 2009 10:21 AM

Ozone Layer Faces Bumpy Return to Health

The Earth's ailing ozone layer will probably recover, but it will never look exactly like it used to.

That is the conclusion of a new study, which found that greenhouse gasses are interfering with ozone's rebound in complicated ways. The study predicts a patchy future for the ozone layer, with some sections becoming even thicker than they were before bans on ozone-damaging chemicals kicked in. Other sections, meanwhile, may remain sparse.

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"This shows that greenhouse gas increases could have some surprising effects on ozone," said Feng Li, an atmosheric scientist at NASA's Goddard Earth Sciences and Technology Center in Greenbelt, Md.

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