Earth
European trading in carbon-emission permits begins
The world now has its first carbon trading scheme. Is this the way to cut greenhouse gases and slow global warming?
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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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Power struggle
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Brace yourself for the end of cheap oil
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Can heavy oil avert an energy crisis?
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Earth
A slicker way to clean up oil tanker spills
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