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Earth

How to turn pig poo into green power

Anaerobic digestion is the most effective and environmentally sound method for generating electricity from pig slurry

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Building a second sun: Take $10 billion, add coconuts

Earth

Building a second sun: Take $10 billion, add coconuts

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Green roofs save on carbon overheads

Earth

Green roofs save on carbon overheads

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Better world: Top tech for a cleaner planet

Earth

Better world: Top tech for a cleaner planet

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Technology

Universal link bids to solve home energy format wars

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Better world: Global green heroes

Earth

Better world: Global green heroes

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Better world: Pimp your house

Earth

Better world: Pimp your house

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Fair carbon means no carbon for rich countries

Earth

Fair carbon means no carbon for rich countries

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Better world: Move to the city

Earth

Better world: Move to the city

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Earth

Geothermal power quakes find defenders

Getting power from hot rocks causes earthquakes, but they are no worse than a "dog barking next door", a seismologist says

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Earth

Methane mining could trigger killer gas cloud

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Technology

How to short-circuit the US power grid

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Earth

Better world: Generate a feed-in frenzy

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Earth

Circling turbines spell doom for vultures

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