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whales and dolphins

Is the biofuel dream over?

Earth

Is the biofuel dream over?

As well as consuming precious land and water, growing biofuels may emit more greenhouse gases than it saves

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Earth

Red Sea mega-dam would be 'irresponsible'

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Mine waste could fuel its own clean-up

Earth

Mine waste could fuel its own clean-up

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Electric cars could act as batteries for the energy grid

Earth

Electric cars could act as batteries for the energy grid

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Russian nuclear security is 'disturbing'

Technology

Russian nuclear security is 'disturbing'

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Earth

Bulgarian nuclear plant on shaky ground

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Plugging into the Sun

Space

Plugging into the Sun

Features

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Earth

Termite tummies give scientists something to digest

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Earth

China surges ahead on clean energy spending

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Earth

Cheap hydrogen power gets a nanotube boost

A hydrogen-based economy may be a step closer as scientists successfully use carbon nanotubes to harness power from the gas

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Technology

World HIV infection overestimated by 7 million

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Technology

Nanotube tangles power printable batteries

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Earth

China on target to meet renewable energy goal

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Health

HIV vaccine trial backfires

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