Contrasting the concerns over climate and ozone loss

Why phasing out chlorofluorocarbons proved a much easier sell than have been moves to cut back on greenhouse gases

By Janet Raloff, 14:18 PM November 8, 2011

On November 7, ozone and climate scientists met in Washington, D.C., to discuss whether the history of stratospheric ozone protection offered a useful case study about how to catalyze global action on carbon dioxide and other greenhouse gases.

Their simple answer: No.

Ozone-damaging chlorofluorocarbons — or CFCs — represented a special case. Such swift global action following recognition of a scientific threat is unlikely to be witnessed again, argued researchers attending the Internation...

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