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US considers nuclear-powered assault ships

Technology

US considers nuclear-powered assault ships

Rocketing fuel prices make nuclear-powered warships an attractive option for the US navy – but how safe are they?

News

Earth

Algae oil promises truly green fuel

News

The greening of Silicon Valley

Earth

The greening of Silicon Valley

Features

Exotic nitrogen could offer safe rocket fuel

Technology

Exotic nitrogen could offer safe rocket fuel

News

Interview: Bring on the solar revolution

Earth

Interview: Bring on the solar revolution

Opinion

'Self-digesting' biofuel plants could ease food crisis

Earth

'Self-digesting' biofuel plants could ease food crisis

News

To make the most of wind power, go fly a kite

Earth

To make the most of wind power, go fly a kite

Features

When burning gas is good for the planet

Earth

When burning gas is good for the planet

News

Fuel prices hit US drivers where it hurts

Earth

Fuel prices hit US drivers where it hurts

News

Women farmers face eviction in biofuels boom

Earth

Women farmers face eviction in biofuels boom

Female subsistence farmers in developing countries will be moved off their land to make way for huge biofuel plantations, says the UN

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Earth

'Flammable ice' could be mined for fuel

News

Earth

Harnessing river whirlpools puts energy on tap

News

Earth

Nuclear super-fuel gets too hot to handle

News

Technology

Editorial: Nuclear industry must not forget past lessons

Opinion