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'PlayStation chair' goes mass-market
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PecoBOO: Eco-friendly webcam software turns off unwatched screens
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Peru trials One Laptop Per Child
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Petrol prices drive homebrew ethanol fuel
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Philips Eco TV dims the lights to save power
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Photo: Dynamo, the kinetic-powered keyboard
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Photos and first test: Hymini, the hand-held wind turbine
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Photos: Battersea Power Station's green future
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Photos: Glastonbury's wind and solar charging tent… for your phone
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Photos: Green innovations from the 'Stonehenge of Silicon Valley'
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Photos: Greenbird 'sail car' hopes to break wind record
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Photos: Hi-tech solar innovations
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Photos: Husqvarna's solar robot lawnmower
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Photos: inflatable solar panels!
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Photos: Interactive dancefloor and eco partying at Club Watt
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Photos: LG's solar Bluetooth hands-free car kit
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Photos: lighting up the developing world
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Photos: making ethanol for greener cars
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Photos: Man BASE jumps off wind turbine
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Photos: massive solar power plants
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Photos: NASA's top 10 pictures for Earth Day
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Photos: new tech from MIT Energy Conference
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Photos: Oxford's revolutionary horizontal tidal turbines
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Photos: Scottish eco office packs in solar glass, sun pipes and more
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Photos: visions of UK cities under floodwater
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Piranha shaver: weirdest wind-up gadget yet
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Planet Earth returns as a DVD board game
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Planet Rescue helps you save endangered species... on a Nintendo DS
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Power-hungry Playstation 3 gets greener
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Powerplus Swallow wind-up lights brighten your bike and phone
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Public want hydrogen debate, says Salford uni
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PURE add new green tech to EcoPlus range
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PUREbreathe filter promises cyclists clean air