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energy efficiency

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Earth

The filthy truth about diesel 'mules'

With almost as many on the road as cars and trucks, is it time to clean up China's rural three-wheeled vehicles?

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Squeaky clean fossil fuels

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Technology

Fuel cell squeezes more from petrol

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Hydroelectric power's dirty secret revealed

Earth

Hydroelectric power's dirty secret revealed

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Earth

European trading in carbon-emission permits begins

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Technology

Power to the people?

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Technology

The clean green energy dream

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Technology

Are ageing US reactors safe?

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Technology

America steels itself to take the nuclear plunge

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Brace yourself for the end of cheap oil

Is the rate at which we can produce oil about to peak?

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Can heavy oil avert an energy crisis?

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Power struggle

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Earth

A slicker way to clean up oil tanker spills

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Earth

Green energy targets blown away

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