课程咨询

托福考试网 托福资料下载 托福资讯 0元讲座 水平测试

托福考试练习
新东方在线 > TOEFL > 托福听力 > 正文
托福培训

扫码免费领资料

内含托福全科备考资料

更有免费水平测试及备考规划

托福培训

扫码关注掌握一手留学资讯

回复XDF免费水平测试

录播精讲 直播课HOT

托福听力练习-科学美国人60秒:控制氯氟烃

2017-02-21 17:33:00来源：科学美国人60秒

点击查看>>科学美国人60秒音频：控制氯氟烃

　　科学美国人60秒中英文翻译：控制氯氟烃

　　科学美国人60秒英文文本

　　In the 1970s, chemists Mario Molina and Sherwood Roland found that mundane household items posed a serious worldwide threat.

　　The two chemists discovered that chlorofluorocarbons, or CFCs, from air conditioners and canisters of hair spray could destroy the ozone layer.

　　That insight got them a Nobel Prize.

　　By the 1980s, folks like then Secretary of State George Shultz woke up to the threat, despite a campaign of denial from scientific doubters.

　　He convinced President Reagan that the danger was real and that action was necessary.

　　By 1989, the U.S. and the rest of the world had crafted an international treaty to curb CFCs known as the Montreal Protocol.

　　As a result, the hole in the ozone layer that forms above Antarctica has mostly stabilized.

　　Now we know that Montreal also bought us a little more time to deal with another air pollution problem: climate change.

　　That's according to a new analysis in the journal Nature Geoscience.

　　The study found a statistically significant correlation between the onset of the Montreal Protocol and a reduction in the pace of global warming.

　　Because CFCs are also greenhouse gases.

　　The finding is good news.

　　It shows that cutting back on greenhouse gas pollution can slow catastrophic climate change.

　　Sadly, the campaign of denial against global warming continues, denying us the chance to make the necessary response.

　　中文翻译请点击下一页

本文关键字: 托福听力练习 科学美国人60秒

上一页 1 2 下一页

托福辅导

关注新东方在线托福

托福机经·Official题目练习

考前重点突破·听说读写海量资料

更多资料

关注新东方在线托福，
回复【XDF】获取大礼包

托福辅导
  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【添加】，回复对应关键字领取学习资料。
更多>>
更多内容

免费获取托福备考大礼包

微信扫描下方二维码 立即领取

托福辅导
更多>>
更多公益讲座>>
更多>>
更多资料
托福TPO 托福听力练习 托福口语练习 托福阅读练习 托福写作练习
我要
反馈 返回
首页
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10