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China surges ahead on clean energy spending

The nation will invest more than $10 billion on wind, solar, hydropower, and biofuels this year – double the US spend in 2006

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Cheap hydrogen power gets a nanotube boost

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Technology

Nanotube tangles power printable batteries

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China on target to meet renewable energy goal

Earth

China on target to meet renewable energy goal

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Hydrogen brewing gets an electrical boost

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Earth

The return of coal poses a huge climate threat

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China special: The solar power king

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China special: The solar power king

Features

Earth

Hydrogen power lights up the seas

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Earth

Bush administration's nuclear plan criticised

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Earth

'Humanity at risk' from ecological debt

A UN planetary health assessment shows we need 1.4 Earths to sustain our lifestyles, prompting calls for more sustainable living

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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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Brazil rides biofuel bandwagon to Africa

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Technology

Light-harvesting nanowire could drive tiny devices

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