Increased energy efficiency and the use of renewable energy would provide a roadmap to reduce fossil fuel demand, thereby reducing CO2 emissions from the largest us source: Electrical Power Plants.

提高能源的利用效率和使用可再生能源将提供一个可以减少化石燃料需求的路线图，从而来自美国最大能源公司：electrical Power Plants的二氧化碳排放。

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Oil is the biggest single energy source and replacements for the energy-dense, easily transported fuel are hard to find.

石油是最大的单一能源和替代品，因为高能量且容易运输的燃料太难找寻。

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Solar energy is lauded as an inexhaustible fuel source that is pollution and often noise free. The technology is also versatile.

太阳能被称为是取之不尽的能源，没有污染，通常也没有噪声，而且用途广泛。

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The degree to which this technique can fulfil its promise to lower CO2 and provide a sustainable fuel source depends crucially on the balance of energy it requires and the energy it stores.

BBC: Petrol from air: Will it make a difference?

"To me it was clear that depleting natural resources and rising fuel costs make solar the energy source of choice for tomorrow, " the entrepreneur explains.

CNN: Recasting the Mind

Those who are for more widespread use of ethanol said it can improve national security, improve our ability to make home-grown fuel and improve our health by steering us away from an energy source that is becoming increasing harder to get to and dirtier to extract.

CNN: Ethanol: Is it friend or foe?