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energy efficiency

Green machine: Fighting the efficiency fallacies

Earth

Green machine: Fighting the efficiency fallacies

The level of public misunderstanding over energy consumption is laid bare in a new report

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Earth

The next best thing to oil

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Innovation: Reinventing urban wind power

Earth

Innovation: Reinventing urban wind power

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Earth

Which oil-mopping technology will win $1.4m X prize?

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Earth

E. coli engineered to make convenient 'drop-in' biofuel

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US food waste worth more than offshore drilling

Earth

US food waste worth more than offshore drilling

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Green machine: A salty solution for power generation

Earth

Green machine: A salty solution for power generation

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Technology

Alternative nuclear fuel is surprisingly reactive

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Green machine: A new push for pond scum power

Earth

Green machine: A new push for pond scum power

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Stabilisers will let deep-sea wind turbines stand tall

Earth

Stabilisers will let deep-sea wind turbines stand tall

Objections to offshore wind farms will disappear if the turbines can be built to float far out at sea

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Earth

Hot electrons could double solar cell efficiency

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Space

Mystery glitch? Blame it on the sun

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Technology

Green machine: Bacteria will keep CO2 safely buried

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Earth

Second well on the way to cap Deepwater Horizon

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