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Earth

Contaminated US site faces 'catastrophic' nuclear leak

The risk of a serious leak from a storage site for nuclear and chemical waste in Washington State is sharply increasing by the year

News

Earth

Wind power sails ahead in UK as US solar plans freeze

News

Cold war 'caterpillar drive' could harvest sea power

Earth

Cold war 'caterpillar drive' could harvest sea power

Features

Oil: The final warning

Earth

Oil: The final warning

Features

Comment: Kicking the oil habit

Earth

Comment: Kicking the oil habit

Comment

New technologies promise biofuel 'plan B'

Earth

New technologies promise biofuel 'plan B'

News

Time to go ahead with Nevada nuclear dump?

Earth

Time to go ahead with Nevada nuclear dump?

News

Have we underestimated total oil reserves?

Earth

Have we underestimated total oil reserves?

News

US considers nuclear-powered assault ships

Technology

US considers nuclear-powered assault ships

News

Earth

Algae oil promises truly green fuel

A bright-green crude oil, produced by photosynthesis in algae, could fuel cars, trucks and aircraft without consuming crops that can be used as food

News

Earth

The greening of Silicon Valley

Features

Technology

Exotic nitrogen could offer safe rocket fuel

News

Earth

Interview: Bring on the solar revolution

Opinion

Earth

'Self-digesting' biofuel plants could ease food crisis

News