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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
Official figures from the Ministry of Transportation show emissions from car exhaust account for 31 percent of the country's total air pollution. In an effort to bring that figure down, the central government has been supporting a series of subsidies
2015CRI中国国际广播电台
暂无音频 the President just spoke at the Edison Electric Vehicle Technical Center in Pomona, California. The Center provides a broad range of electric transportation services, focusing on solutions for automakers, battery manufacturers, government a
美国总统每日发言
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）
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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