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energy efficiency

The microchips that could heat your home

Technology

The microchips that could heat your home

A new cooling system developed by engineers at IBM allows the waste heat from computer chips to be put to use for domestic heating

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Turning CO<SUB>2</SUB> back into hydrocarbons

Earth

Turning CO2 back into hydrocarbons

Features

Souped-up battery prepares to slay the gas guzzlers

Earth

Souped-up battery prepares to slay the gas guzzlers

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Earth

Green invention special: Long-life solar cells

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Solar cell speeds hydrogen production

Technology

Solar cell speeds hydrogen production

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The power walk that charges your phone

Technology

The power walk that charges your phone

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Biofuels emissions may be 'worse than petrol'

Earth

Biofuels emissions may be 'worse than petrol'

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US pulls the plug on flagship clean coal project

Earth

US pulls the plug on flagship clean coal project

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Algae hold the key to the biofuel conundrum

Earth

Algae hold the key to the biofuel conundrum

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Super-efficient car to green up the highway

Earth

Super-efficient car to green up the highway

Creating a car capable of 100 miles per gallon is not as difficult as you might think. Is this the end of the road for the gas guzzler?

Features

Technology

Editorial: Don't mess with nuclear safety

Opinion

Technology

Sacking of nuclear official prompts row

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Earth

Pitter-patter of raindrops could power devices

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Earth

Europe unveils ambitious energy plan

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