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  • 纯正英语一分钟-ozone layer

    I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea...

  • 联合国:臭氧层将于2048年恢复原状

    Ozone layer(臭氧层) 'is no longer disappearing and will return to full strength by 2048', says UN report. The ozone layer is no longer disappearing and could be back to full strength by the middle of this century, UN scientists have confirmed(...

  • Earth and Sky:Global Warming and Ozone 全球变暖和臭氧

    Global Warming and Ozone 全球变暖和臭氧 Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky. DB: This is Earth and S...

  • ENVIRONMENT REPORT - Shrinking Ozone Hole over Antarctica

    ENVIRONMENT REPORT - November 1, 2002: Shrinking Ozone Hole over Antarctica By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. Australian researchers say the hole in the ozone layer o...

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