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New technologies promise biofuel 'plan B'

Earth

New technologies promise biofuel 'plan B'

Biofuels have failed to live up to their early environmental promise, but fuels made from plant waste and weeds may turn this around

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

News

Exotic nitrogen could offer safe rocket fuel

Technology

Exotic nitrogen could offer safe rocket fuel

News

The greening of Silicon Valley

Earth

The greening of Silicon Valley

Features

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

Climbing is a walk in the park for small primates

Life

Climbing is a walk in the park for small primates

News

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

Earth

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

Tethered kites sent high into the air could be far more efficient than land-based wind turbines, says Michael Brooks

Features

Health

No rise in premature baby survival rates

News

Earth

When burning gas is good for the planet

News

Health

Stigma helps AIDS flourish in Russia

News

Earth

Fuel prices hit US drivers where it hurts

News