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Technology

Nanotube tangles power printable batteries

Cheap, flexible batteries that can be printed onto a surface could be on the way thanks to networks of carbon nanotubes

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China on target to meet renewable energy goal

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China on target to meet renewable energy goal

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Hydrogen brewing gets an electrical boost

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China special: The solar power king

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China special: The solar power king

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The return of coal poses a huge climate threat

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Bush administration's nuclear plan criticised

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'Humanity at risk' from ecological debt

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Hydrogen power lights up the seas

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Waste wafers give solar power a silicon boost

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Depleting oil supplies threaten 'meltdown in society'

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Depleting oil supplies threaten 'meltdown in society'

Oil supplies peaked in 2006, say analysts, furthermore future shortages could mean mass unrest around the globe

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Brazil rides biofuel bandwagon to Africa

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Technology

Light-harvesting nanowire could drive tiny devices

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Mechanical 'fish' could tap turbulence for energy

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Pentagon backs plan to beam solar power from space

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