The problem now is not that the world is running out of energy but that the new sources of energy are more expensive to exploit.

现在的问题并非世界已无能源可采，而是开采新能源变得更昂贵了。

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The problem of lack of energy can not be avoided any more in today's world. The world will face great crisis for the lack of energy.

目前，能源枯竭问题已经成为世界各国不可回避的问题，同时，能源不足也使世界面临极大地危机。

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To solve the energy problem, people all over the world are looking for new ways to produce power.

为了解决能源问题，全世界的人们都在寻找新的方法来生产动力。

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Nuclear fusion, a theoretical way of harnessing power by fusing atoms which is still under development, may one day provide a cleaner alternative to the world's energy problem.

BBC: Impact of global warming may be severe and wide-ranging

The problem, for the region, is that it's land-locked and faces the problem of getting its energy to world markets.

BBC: Oil flows from the Caspian Sea

The result might be less well-rounded and creative problem-solvers rooted in the perennial questions of world civilization, but also less time and energy spent interviewing, and trying out, applicants who, in practice, do not have the competencies needed.

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