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Published online 28 January 2009 | Nature 457, 518-519 (2009) | doi:10.1038/457518a
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Cutting out the chemicals
The international treaty drawn up to tackle ozone-destroying substances is gearing up to curb greenhouse gases. Jeff Tollefson reports.
Ozone experts are exploring ways to curb powerful greenhouse gases of their own making under the Montreal Protocol, arguing that direct regulation would be faster and cheaper than using carbon markets under a global climate treaty.
The Montreal Protocol set a strong precedent for such an approach, having almost eliminated production of the once-ubiquitous chlorofluorocarbons (CFCs) that eat away at stratospheric ozone.
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