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

发表于:2019-01-02 / 阅读(105) / 评论(0) 分类 (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

发表于:2019-01-02 / 阅读(107) / 评论(0) 分类 (科普英语)Earth and Sky

By Cathy Majtenyi Nairobi 08 November 2006 Nobel Peace Prize winner Wangari Maathai Wednesday called on the world to plant one billion trees as part of a global effort to fight climate change. She launched the initiative at the United Nations' Clima

发表于:2019-01-04 / 阅读(98) / 评论(0) 分类 2006年VOA标准英语(十一月)

The trouble with trees 自人类诞生之日起,树木就一直忠实地陪伴着我们。年复一年的生息轮回中,除了年轮的增长,我们似乎很难察觉树木所经历的改变。然而,我们的这些老朋友在全球气候急剧

发表于:2019-01-08 / 阅读(36) / 评论(0) 分类 英语笔译

Tree Deaths Linked to Climate Change Stanford University graduate student William Anderegg has seen this forest die-off firsthand. His doctoral thesis documents the impact of drought on trembling aspen, the most common tree in North America. These ar

发表于:2019-01-13 / 阅读(59) / 评论(0) 分类 VOA标准英语2012年(九月)

Scientist uses tree rings to reconstruct 13th century climate Art Chimes | Washington, DC 05 April 2010 Photo: Photos.com Related Links: Angkor paper (full text) Buckley lab We started seeing these big, giant periods of drought that took place around

发表于:2019-01-31 / 阅读(27) / 评论(0) 分类 VOA标准英语2010年(四)月