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Homes are rising on the National Mall in Washington, D.C. No, it's not a return of Hoovervilles thanks to the Great Recession. These are solar homes competing in the U.S. Department of Energy's Solar Decathlon, which starts October 8. From Cornell Un
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
Scientific American(四)月
The eighth US-China Energy Efficiency Forum has been held in Denver, in the US State of Colorado. At the forum, both sides agreed that Sino-US cooperation is essential to the low-carbon and green development of the world. CRI's Guan Chao has more. Ho
2017CRI中国国际广播电台
By Scott Stearns White House 19 December 2007 The United States is boosting fuel efficiency standards in automobiles for the first time in 32 years. VOA White House Correspondent Scott Stearns reports, President Bush signed the new standards into law
VOA常速英语2007年（十二月）
环境保护和污染治理已经成为现在大家最关注的话题之一。发展清洁科技，提高能源使用效率成为提升环境质量的不二选择。 Cleantech refers to the technology that is itself environmentally friendly or that h
英文语法词汇
Back to basics 节能以人为本 Energy efficiency is not very flashy. That may be a selling point 能源增效并不那么高高在上，也许它还是个卖点。 Hope those are energy-saving bulbs 希望大家都使节能灯泡 WHEN Richard Sanc
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