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美国总统布什于1992年2月11日宣布,美国将在1995年年底前停止氟里昂的生产。据报道,布什曾坚拒欧洲共同体关于加快停止生产氯化烃的建议,并在此举的科学和经济价值问题上进行争辩。但今年2月初美国国家航空和航天局提供了一份报告,根据送进同温层的人造卫星及飞行器的观测,发现臭氧耗损的速度比原来人们所认为的要快得多,
U.S. President Bush announced on February 11, 1992 that the United States will stop freon production by the end of 1995. According to reports, Bush had firmly rejected the European Community’s proposal to speed up the cessation of the production of chlorinated hydrocarbons and argued on the issue of the scientific and economic value of this move. However, in early February of this year, the National Aeronautics and Space Administration provided a report. According to observations of satellites and aircraft sent to the stratosphere, it was found that the rate of ozone depletion was much faster than previously thought.