单词：graded energy gap solar cell
单词：graded energy gap solar cell 相关文章
Drylands Vulnerable to Climate Change Researchers warn that the worlds drylands are being severely affected by climate change. They say that could harm the livelihoods and food security for billions of people. Scientists describe the projected effect
VOA标准英语2014年(十一月)
STEVE INSKEEP, HOST: A new movie shows Al Gore in Greenland. He's visiting a station where scientists measure the ice. And he's watching as much of the ice in Greenland turns into rivers of water flowing away. The movie is called An Inconvenient Sequ
2017年NPR美国国家公共电台7月
LULU GARCIA-NAVARRO, HOST: In our final installment on how communities around the world are adjusting to climate change, we go to India. Pollution there from the burning of fossil fuels is encouraging the spread of solar energy. But as NPR's Julie Mc
2017年NPR美国国家公共电台8月
DOHA, Dec. 8 (Xinhua) -- The United Nations climate talks in Doha entered the final stage Saturday with drafts of the low- ambitious second period of Kyoto Protocol and weak commitment on climate finance after overnight negotiations on differences be
英语新闻
Maryland, south of Washington, DC 15 October 2007 Scientists are predicting there could be a global food crisis in this century if climate change continues unabated. VOA's Jeff Swicord reports. Buddy Hanse has been farming on land south of Washington
2007年VOA常速英语（十月）
WASHINGTON, June 29 (Xinhua) -- U.S. President Barack Obama met with a bipartisan（代表两党的） group of senators Tuesday in the White House on climate and clean energy bill, and said he's confident they can get something done this year.Urging
英语新闻