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energy efficiency

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Technology

'Smart heating' fits the bill

A system which monitors energy prices and adjusts thermostats in response can ease peak loads on power grids and save consumers money

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Editorial: Supporting role for nuclear power?

Opinion

Coal: Bleak outlook for the black stuff

Earth

Coal: Bleak outlook for the black stuff

Features

Carbon-trading plans could boost nuclear power

Earth

Carbon-trading plans could boost nuclear power

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Earth

Mixed news for US agency over emissions

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Prairie grass revives hopes for biofuels

Earth

Prairie grass revives hopes for biofuels

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Earth

US to turn off power-hungry light bulbs

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Can we stop the internet destroying our planet?

Technology

Can we stop the internet destroying our planet?

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Technology

Carbon electrodes could slash cost of solar panels

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Earth

Marine algae get the green light from Shell

Unlike biofuels such as corn, algae don't use up land or water that could be used to grow food – now an oil company is to use them to produce biodiesel

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Earth

Editorial : Clearing up the confusion over biofuels

Opinion

Earth

Is the biofuel dream over?

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Earth

Red Sea mega-dam would be 'irresponsible'

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Earth

Mine waste could fuel its own clean-up

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