US Seeks To Use Montreal Protocol For GHG Emissions Cuts

Law360, New York (May 10, 2011, 5:55 PM EDT) -- The U.S., Canada and Mexico resubmitted a proposal on Monday that would use the Montreal Protocol ozone treaty — which has never previously dealt with climate issues — to phase down emissions of hydrofluorocarbons, which are potent greenhouse gases.

Hydrofluorocarbons, or HFCs, have been used in car air conditioners and kitchen refrigerators as a substitute for ozone-destroying chlorofluorocarbons. But although HFCs do not pose a threat to the ozone layer, they are 14,000 times more effective at trapping heat than carbon dioxide, according to the U.S....
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