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energy efficiency

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Earth

Carbon bubble could threaten markets… maybe

Shaky assumptions about future fossil-fuel use are buoying financial markets and could trigger another crash one day, a green-energy entrepreneur says

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Pay as you go solar power makes energy cheaper

Technology

Pay as you go solar power makes energy cheaper

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Earth

Engineers can build a low-carbon world if we let them

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Current power: New tide turbines tap oceans of energy

Earth

Current power: New tide turbines tap oceans of energy

Features

Coconuts and sunshine will power South Pacific islands

Earth

Coconuts and sunshine will power South Pacific islands

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Portable ammonia factories could fuel clean cars

Earth

Portable ammonia factories could fuel clean cars

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Health

Fukushima media coverage 'may be harmful'

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New power wave heads out to sea

Earth

New power wave heads out to sea

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End of Libyan war unlikely to affect global oil supply

Earth

End of Libyan war unlikely to affect global oil supply

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Briefing: Security fears over laser-enriched uranium

Technology

Briefing: Security fears over laser-enriched uranium

Enriching uranium using lasers is far more efficient than existing methods – but it could make it easier for the facilities to be hidden

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Earth

Did quake or tsunami cause Fukushima meltdown?

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Earth

Biggest UK oil spill for 10 years

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Technology

Star power: Small fusion start-ups aim for break-even

Features

Earth

The carbon cost of Germany's nuclear 'Nein danke!'

Comment

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