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Earth

Material that turns heat to power gets efficiency hike

Adding the right metal to a thermoelectric compound can more than double its efficiency – paving the way for heat wasted by engines and computers to be recovered

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Interview: Driving towards the 100-mpg car

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Interview: Driving towards the 100-mpg car

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Earth

Chemical breakthrough turns sawdust into biofuel

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Who needs coal when you can mine Earth's deep heat?

Earth

Who needs coal when you can mine Earth's deep heat?

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Earth

Nanotubes bring artificial photosynthesis a step nearer

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Earth

Organic dye lets window panes harvest the Sun

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Earth

Contaminated US site faces 'catastrophic' nuclear leak

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Earth

Wind power sails ahead in UK as US solar plans freeze

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Cold war 'caterpillar drive' could harvest sea power

Earth

Cold war 'caterpillar drive' could harvest sea power

Features

Comment: Kicking the oil habit

Earth

Comment: Kicking the oil habit

Don't imagine that pumping more oil will get us out of our current mess, argues Matthew R Simmons - dealing with the addiction is the only option

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Earth

Oil: The final warning

Features

Earth

Time to go ahead with Nevada nuclear dump?

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Earth

New technologies promise biofuel 'plan B'

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Earth

Have we underestimated total oil reserves?

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