There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(104) / 评论(0) 分类 英语课程学习计划和讲义

Even the dirt on the ground is likely making climate change worse, a new study finds. Researchers have shown that warmer temperatures are heating the soil, which is causing microbes to become more active and release more of the soils carbon into the

发表于:2019-01-03 / 阅读(112) / 评论(0) 分类 2018年VOA慢速英语(八)月

By Brian Wagner Miami 21 June 2007 Scientists are seeking new ways to reverse the buildup of carbon dioxide in the atmosphere that many believe is the cause of global warming. Today on Searching for Solutions, VOA's Brian Wagner reports that one proj

发表于:2019-01-11 / 阅读(86) / 评论(0) 分类 2007年VOA标准英语(六月)

Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according

发表于:2019-01-13 / 阅读(58) / 评论(0) 分类 VOA标准英语2012年(一月)

Africa Kicks-up A Lot of Dust 非洲大陆的灰尘飘向美国 Bits and pieces of the African continent are falling on the United States and surrounding regions much of the year. Scientists say large amounts of African dust may be having major effec

发表于:2019-02-01 / 阅读(32) / 评论(0) 分类 VOA常速英语2013年(九月)

Deep Seagrass Bed Could Stall Climate Change, If Climate Change Doesn't Kill It First MICHEL MARTIN, HOST: Staying on the subject of climate change for a few more minutes, there was another bright spot this past week amid all the dire warnings we hav

发表于:2019-02-13 / 阅读(33) / 评论(0) 分类 2018年NPR美国国家公共电台12月