CFCs are banned under the Montreal Protocol on Substances that Deplete the Ozone Layer.

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Is the Montreal Protocol a model for negotiations on the much tougher problem of global warming?

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The Montreal protocol, which banned various ozone-depleting chemicals, has left the ozone layer's long-term prospects looking quite bonny.

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The Montreal Protocol is the international agreement designed to protect the ozone layer by phasing out production of Cfc's and halons.

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In response to the perverse incentives resulting from the overlap of the Montreal and Kyoto agreements, a group of countries including America, Brazil and Norway will call for a faster phase-out of the refrigerants that produce HFCs at a meeting that marks the 20th anniversary of the Montreal protocol in September.

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Already, atmospheric scientists have detected reductions in atmospheric concentrations of a number of ozone depleting chemicals, a positive sign that the 1985 Montreal Protocol to reduce Cfc emissions is working.

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The announcement follows the release of a report last month by Dutch and American scientists arguing that the voluntary Montreal agreement has been more successful in combating climate change than has the market-based Kyoto protocol.

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The protocol will also establish a biosafety clearing-house, in the Canadian city of Montreal, as a one-stop shop for information on GMOs.

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