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Earth

How to turn greenhouse gas into a clean fuel

A new process converts carbon dioxide into methanol, without the need for extreme temperatures and pressures

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Earth

Geoengineering could dim lights on solar power

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Yeast and bacterium turned into gasoline factory

Earth

Yeast and bacterium turned into gasoline factory

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Gallery: Green innovation challenge

Earth

Gallery: Green innovation challenge

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Can oil from tar sands be cleaned up?

Earth

Can oil from tar sands be cleaned up?

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Green and mean: The downside of clean energy

Earth

Green and mean: The downside of clean energy

Features

World's highest-energy laser begins operating

Space

World's highest-energy laser begins operating

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Batteries grown from 'armour-plated' viruses

Life

Batteries grown from 'armour-plated' viruses

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Earth

Are we safe in a new nuclear age?

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Yeast-powered fuel cell feeds on human blood

Technology

Yeast-powered fuel cell feeds on human blood

A small fuel cell containing brewer's yeast generates electricity from the glucose found in blood – it could one day be used to power medical implants

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Earth

Ice that burns could be a green fossil fuel

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Technology

Neutron tracks revive hopes for cold fusion

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Earth

'Hearts and minds' approach needed in green tech drive

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Earth

Oil rigs may be fit for porpoise

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