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冰原融化可能释放出冷战时期的废物

作者:www.ruishiye.com  时间:2017-08-04
 
     
      waste thought to be buried forever beneath the Greenland Ice Sheet, new research finds. Camp Century, a U.S. military base built within the Greenland Ice Sheet in 1959, doubled as a top-secret site for testing the feasibility of dep in 1967, its infrastructure and waste were abandoned under the assumption they would be entombed forever by perpetual snowfall.英语散文
     But climate change has warmed the Arctic more than any other region on Earth, and a new study finds the portion of the ice sheet covering Camp Century could start to melt by the end of the century. If the ice melts, the camp's infrastructure, as well as any remaining biological, chemical and radioactive waste, could re-enter the environment and potentially disrupt nearby ecosystems, to the study's authors.
     Determining who is responsible for cleaning up the waste could also lead to political disputes not considered before, to the study's authors.
     "Two generations ago, people were interring waste in different areas of the world, and now climate change is modifying those sites," said William Colgan, a climate and glacier scientist at York University in Toronto, Canada, and a research associate at the Cooperative Institute for Research in Environmental Sciences in Boulder, Colorado, lead author of the new study. "It's a new breed of political challenge we have to think about."
     The new study was published today in Geophysical Research Letters, a journal of the American Geophysical Union.
     
     
     
本文编辑:www.ruishiye.com

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