Burning coal for energy adds planet-warming carbon dioxide, or CO2, to Earths atmosphere. As the planet heats up, experts warn that simply cutting greenhouse gas emissions will not be enough to avoid possibly disastrous levels of global warming. CO2

发表于:2018-11-27 / 阅读(293) / 评论(0) 分类 2018年VOA慢速英语(十一)月

The world's largest and most devastating 世上最大、最具破坏性的 environmental and industrial project 环境及工业计划 is situated in the heart 发生于 of the largest and most intact forest in the world, 世上最大、保存最完整的

发表于:2018-12-08 / 阅读(41) / 评论(0) 分类 TED演讲娱乐篇

The earths tropics teem with species. Theyre far more biologically diverse than the cooler parts of the planet. And scientists have credited higher temperatures and greater amounts of sunlight. But a new study claims that the secret to tropical biodi

发表于:2018-12-24 / 阅读(34) / 评论(0) 分类 Scientific American(七)月

China has more plants than anywhere else in the temperate regions of the world. In fact, it has almost twice as many kinds of plants as there are in the United States which is about the same size and about three times as many as there are in Europe.

发表于:2018-12-30 / 阅读(103) / 评论(0) 分类 国家地理2008年

China has more plants than anywhere else in the temperate regions of the world. In fact, it has almost twice as many kinds of plants as there are in the United States which is about the same size and about three times as many as there are in Europe.

发表于:2019-01-22 / 阅读(27) / 评论(0) 分类 自然百科2008年

A new book by photographer Amy Gulick highlights the interconnectedness of wildlife and people in the Tongass rainforest of Alaska Vronique LaCapra | St. Louis 08 July 2010 Photo: Amy Gulick/amygulick.com Chum salmon (onorhynchus keta) on a spawning

发表于:2019-02-05 / 阅读(28) / 评论(0) 分类 VOA标准英语2010年(七)月