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Renewable energy

Forget biofuels – burn oil and plant forests instead

Earth

Forget biofuels – burn oil and plant forests instead

A new analysis suggests that more carbon could be offset by replanting forests and using conventional fossil fuels than can be saved by using biofuels

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Earth

Nations scramble for oil in Arctic

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Can biofuels rescue American prairies?

Earth

Can biofuels rescue American prairies?

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Energy-curbing bill passes Congress

Earth

Energy-curbing bill passes Congress

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Buoys flex artificial muscles for renewable energy

Earth

Buoys flex artificial muscles for renewable energy

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Revealed: America's most polluting power plants

Earth

Revealed: America's most polluting power plants

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Flying windmills could harness the jet stream

Earth

Flying windmills could harness the jet stream

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Renewable energy could 'rape' nature

Earth

Renewable energy could 'rape' nature

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Summer sun can provide winter heat

Technology

Summer sun can provide winter heat

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Taking the fossil out of fossil fuel

Earth

Taking the fossil out of fossil fuel

Some natural gas is much newer than it looks – and researchers are hoping to make their own

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Technology

China simplifies method for turning coal to gas

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Earth

Corn biofuel 'dangerously oversold' as green energy

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Earth

Amazon dam project gets the go-ahead

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Technology

Exfoliation produces lighter, cheaper solar cells

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