In Search of a Magic Bullet

Why can't technology rescue the world from the mess that technology created? Isn't there a quick fix? Scientists know there isn't, but that doesn't stop them from musing about fanciful schemes for mechanically or chemically refurbishing the ozone layer in short order. By discussing and critiquing these ideas, researchers hope to educate the public about the dangers of climate engineering as well as learn for themselves the feasibility of various solutions.

"One of the common suggestions is, 'Why don't we just ship L.A.'s ozone up?' " says chemist Sherwood Rowland. "Well, 30% of the ozone is in the stratosphere, and it...

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