故事
时间线
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US companies focus on alternative cooling systems to reduce greenhouse gas emissions
适用语言: English -
Push by companies to limit gas emitted by air conditioners & refrigerators
适用语言: English -
Govt. leaders discuss amending Montreal Protocol to limit use of highly-pollutant gas
适用语言: English -
Businesses joins govts. to call for amendment to strictly regulate greenhouse gases
适用语言: English