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

《蒙特利尔议定书》规定禁止使用各种消耗臭氧层的化学物质，使臭氧层保护的远期前景显得非常良好。

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Bans on ozone-depleting chemicals were not burdensome for US companies.

禁止排放破坏臭氧层的化学物质并不会给美国公司造成负担。

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Regulations are outlawing certain refrigerants, such as chlorofluorocarbons, which contain ozone-depleting chemicals.

某些制冷剂，如含氯氟烃已被相关规列列为非法，因为这些制冷剂含有破坏臭氧层的物质。

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California regulators have approved four categories of carbon offsets in its soon-to-launch cap-and-trade program: forestry, urban forestry, ozone depleting substances, and agricultural methane.

FORBES: Using Carbon Credits To Pay For Energy Retrofits

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.

BBC: News | Sci/Tech | Ozone hole reaches record size

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

ECONOMIST: Geoengineering