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Green machine: Generating more light than heat

Earth

Green machine: Generating more light than heat

New, cheaper thermoelectric devices that convert heat into electricity could reduce our consumption of fossil fuels and greenhouse gas emissions

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Deepwater Horizon: scrutiny falls on blowout preventer

Earth

Deepwater Horizon: scrutiny falls on blowout preventer

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Oil slick fight continues with robots and fire

Earth

Oil slick fight continues with robots and fire

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Green machine: Cheaper home power from sunlight

Earth

Green machine: Cheaper home power from sunlight

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Green machine: Power from the people

Earth

Green machine: Power from the people

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Technology

Carbon flakes brush up for cheap solar cells

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Green machine: Rethinking internal combustion engines

Earth

Green machine: Rethinking internal combustion engines

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Technology

World's largest laser blasted over fusion plan

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Molten metal batteries to be clean energy reservoirs

Earth

Molten metal batteries to be clean energy reservoirs

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Skip the hard cell: Flexible solar power is on its way

Earth

Skip the hard cell: Flexible solar power is on its way

Stick-on solar cells about to flop off the production line could revolutionise the business of generating electricity from sunlight

Features

Earth

Innovation: Only mind games will make us save power

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Earth

Which is the greenest US city of all?

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Earth

Search engines' dirty secret

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Earth

Texas oil companies will soon be locking away carbon

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