今天，我们生产的可再生能源比以往任何时候都多，天然气产量全球第一，20多年来，美国国内石油产量第一次超过海外石油进口量。

And today, we generate more renewable energy than ever, more natural gas than anybody, and for the first time in nearly 20 years, America now produces more oil than we buy from other countries.

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除了增加对替代能源如生物燃料的利用以及提高车辆的效能，奥巴马指出美国必须提高国内的石油产量。

As well as increasing the use of alternative energies such as biofuels and making vehicles more efficient, Mr Obama said the us must raise domestic oil production.

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但是，布什和麦凯恩还要求加大开采国内石油资源，以增加美国的原油供给。

But Mr. Bush and McCain are also calling for expanded domestic oil drilling to boost America's crude supplies.

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