不连续多年冻土层

SCIENCE IN THE NEWS - Looking Inside the Brains of 'Lucid Dreamers' FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we tell how warmer weather in the Arctic could speed up c

发表于:2018-12-01 / 阅读(757) / 评论(0) 分类 2011年VOA慢速英语(十二)月

If the world continues on a business-as-usual path, the Intergovernmental Panel on Climate Change predicts that there is a fifty-fifty chance the temperature will exceed 5 degrees by the end of this century. This increase may not sound like much, but

发表于:2018-12-18 / 阅读(113) / 评论(0) 分类 TED演讲教育篇

Topics: American Presidents-Grover Cleveland; to understand versus to grab versus to grasp versus to get (it); the suffix-hood; pronouncing words with the first letter e Words: discontinuous to be drafted to nominate mayor to veto commerce tariff to

发表于:2018-12-26 / 阅读(122) / 评论(0) 分类 美语听力 English Cafe

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(182) / 评论(0) 分类 火星生命

Melting Arctic Could be Major Source of Greenhouse Gases The melting arctic permafrost could release methane-producing microbes with the potential to accelerate climate change, according to a new study published in Nature. Lead author Janet Jansson,

发表于:2019-01-04 / 阅读(136) / 评论(0) 分类 VOA标准英语2011年(十一月)

北极冰带的融化将加速全球变暖进程 DATE=2/16/01 TITLE=SPECIAL ENGLISH ENVIRONMENT REPORT - Arctic Permafrost Melting BYLINE=Cynthia Kirk (Start at 59

发表于:2019-01-04 / 阅读(121) / 评论(0) 分类 自然探索

The New York governors communications chief is resigning over the political scandal overshadowing the states top office. In a statement today Peter Hoffman says that given the recent developments, he had to quit. Governor David Paterson is under pres

发表于:2019-01-08 / 阅读(148) / 评论(0) 分类 2010年NPR美国国家公共电台3月

By Frank Ling Washington 07 August 2006 New research shows that global warming might be worse than expected because of melting permafrost, permanently frozen soil, which can release the greenhouse gas, carbon dioxide. Computer models predict higher

发表于:2019-01-11 / 阅读(164) / 评论(0) 分类 2006年VOA标准英语(八月)

Polar Scientist Charts Melting Caused by Climate Change Michael Gooseff follows water to the end of the earth. The Pennsylvania State University hydrologist works in remote regions of the Arctic and Antarctic, where ice and frozen ground are thawing.

发表于:2019-01-14 / 阅读(107) / 评论(0) 分类 VOA标准英语2011年(八月)

SCOTT SIMON, HOST: Most native villages in the western part of Alaska are built on permafrost. That's a thick layer of frozen soil. And with climate change, the permafrost has started to thaw. In one town, this means their cemetery is melting. People

发表于:2019-01-16 / 阅读(125) / 评论(0) 分类 2017年NPR美国国家公共电台12月

DAVID GREENE, HOST: Come with us on a journey inside the Earth. Well, inside a special layer in the Earth. A quarter of the Northern Hemisphere is covered with what's called permafrost, and for the first time in centuries, the permafrost is beginning

发表于:2019-01-16 / 阅读(144) / 评论(0) 分类 2018年NPR美国国家公共电台1月

Anthrax Outbreak In Russia Thought To Be Result Of Thawing Permafrost STEVE INSKEEP, HOST: Russia is fighting a mysterious outbreak of disease. Dozens of people are hospitalized due to anthrax. Yes, anthrax, the bacterial infection so deadly that cer

发表于:2019-02-13 / 阅读(128) / 评论(0) 分类 2016年NPR美国国家公共电台8月
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9-azafluorene
aethylhydrocupreinae
ALARA (as low as reasonably achievable)
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blue hole
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