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Can oil from tar sands be cleaned up?

Earth

Can oil from tar sands be cleaned up?

Canadian tar sands contain the world's second-largest reserves of oil, but extracting it is a filthy process. Bacteria and steam may help to clean it 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

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Ice that burns could be a green fossil fuel

Earth

Ice that burns could be a green fossil fuel

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Neutron tracks revive hopes for cold fusion

Technology

Neutron tracks revive hopes for cold fusion

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'Hearts and minds' approach needed in green tech drive

Earth

'Hearts and minds' approach needed in green tech drive

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Oil rigs may be fit for porpoise

Earth

Oil rigs may be fit for porpoise

The finding that North Sea drilling platforms are cetacean feeding grounds prompts the question: should old rigs be left in place once their commercial life is over?

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Technology

Atomic construction yields punchier power store

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Earth

Solar power schemes could protect nature reserves

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Earth

From AC to DC: Going green with supergrids

Features

Earth

'Nanoball' batteries could recharge car in minutes

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