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energy efficiency

Soap bubbles to take the drag out of future cars

Technology

Soap bubbles to take the drag out of future cars

Motion-tracking cameras that watch helium-filled, neutrally buoyant bubbles swirl past a vehicle can reveal its aerodynamics as never before

News

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Earth

Bug power makes salt water sweet

News

Triumph of the commons: Helping the world to share

Earth

Triumph of the commons: Helping the world to share

Features

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Earth

Green power safer for workers than fossil fuels

News

How to turn seawater into jet fuel

Earth

How to turn seawater into jet fuel

News

As Arctic Ocean warms, megatonnes of methane bubble up

Earth

As Arctic Ocean warms, megatonnes of methane bubble up

News

Future trucks: Cleaning up the kings of the road

Earth

Future trucks: Cleaning up the kings of the road

Features

Glass leaf 'sweats' to generate electricity

Earth

Glass leaf 'sweats' to generate electricity

News

US vehicle efficiency hardly changed since Model T

Earth

US vehicle efficiency hardly changed since Model T

News

Review: <i>The Solar Century</i> edited by Jeremy Leggett

Earth

Review: The Solar Century edited by Jeremy Leggett

As we embark on a solar revolution, the author wades in with an easy-to-read guide explaining the why and how of solar power, from thin-film silicon to electric cars

Books & Arts

Earth

Electric cars: Juiced up and ready to go

Features

Technology

Interview: Fusion in a cold climate

Opinion

Earth

Rival designs race to harness ocean energy

News

Earth

Money flows into green transport despite recession

News

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