Take materials scientist Ting Xu. She’s using nanotechnology to craft solar cells that are more energy-efficient and eco-friendly than oil or coal.

以材料科学家徐婷为例，她正在用纳米技术制造太阳能电池，这是比石油和煤炭热能更高更环保的能源。

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Thanks to Japanese industry, which USES a similar amount of energy as it did during the oil shock of 1973, the country is already the world's most energy-efficient.

多亏了日本的工业，它只消耗了同1973年石油危机时同样多的能量，日本俨然已成为世界上能源利用率最高的国家。

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The annual savings by the feds using more energy efficient PCs would be equivalent to conserving 1.3 billion barrels of oil.

每年通过使用更加省能源的PC与保存13亿桶的价值等效。

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They called for more investment in the production and refining of crude oil, for more efficient use of energy and more work on alternatives to oil.

BBC: G8 summit: The key issues

Our military leaders recognize the security imperative of increasing the use of alternative fuels, decreasing energy use, reducing our reliance on imported oil, making ourselves more energy-efficient.

WHITEHOUSE: Energy Security and Independence

The Cheney group said it aimed its recommendations at increasing the nation's energy supplies through expanded nuclear power, increased domestic oil drilling and more efficient movement of energy, including electricity, natural gas and petroleum.

CNN: House OKs bill to drill in Arctic reserve