单词：arctic treeline
单词：arctic treeline 相关文章
Moon and Jupiter 月球和木星 After traveling behind the sun for several months, the planet Jupiter is now visible again, just before sunup. Learn how to see Jupiter near the waning moon on Wednesday morning -- on today's Earth and Sky. JB: This is Ea
(科普英语)Earth and Sky
Sierra Treeline 山脊树林 Could global warming allow forests to expand into higher elevations than they have reached in more than a thousand years? Learn more about studying alpine treelines -- today on Earth and Sky. JB: This is Earth and Sky. The h
(科普英语)Earth and Sky
By Kurt Achin Seoul 26 July 2007 South Korea says kidnappers who killed a South Korean hostage in Afghanistan will be held accountable for their actions. As family and friends of the victim mourn, South Korean negotiators are trying to save the lives
2007年VOA标准英语（七月）
By Paul Sisco Washington, DC 01 February 2008 Scientists know that the waters north of Greenland, around the Arctic Circle, significantly influence global weather patterns. But until recently, they only have been able to measure the region's deep oce
VOA常速英语2008年（二月）
As government officials from eight Arctic nations - the United States, Russia, Canada, Sweden, Finland, Denmark, Norway and Iceland - prepare to meet in Greenland next week to discuss the challenges of climate change, a report released May 4, 2011 un
英语新闻
U.S. Secretary of State Hillary Clinton is expected to join fellow foreign ministers from the eight-nation Arctic Council on Thursday in Greenland's capital, Nuuk, for a meeting on polar region issues, including the receding Arctic ice cap. The meeti
英语新闻