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Renewable energy

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Brazil rides biofuel bandwagon to Africa

Brazil now meets 30% of its demand for automobile fuel with bioethanol – now its president tells the developing world to follow suit

News

Light-harvesting nanowire could drive tiny devices

Technology

Light-harvesting nanowire could drive tiny devices

News

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Earth

Mechanical 'fish' could tap turbulence for energy

News

Pentagon backs plan to beam solar power from space

Earth

Pentagon backs plan to beam solar power from space

News

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Go nuclear for a third industrial revolution, says EC

News

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Earth

Semiconductor uses the sun to split water

News

Grass-munching bugs could charge rural phones

Technology

Grass-munching bugs could charge rural phones

News

Rocks could be novel store for wind energy

Earth

Rocks could be novel store for wind energy

Features

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'Smart roofs' can keep you cool and save energy

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Earth

Redesigned petrol engine promises green gains

The prototype vehicle engine may improve future fuel efficiency by 25% and reduce emissions, say its developers

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Technology

Computers learn to fly kites for renewable energy

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Earth

Antarctic pod makes way for green research

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Earth

Fossil-fuel hangover may block ice ages

News

Earth

Underwater turbines set to generate record power

News

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