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Microsoft aims to be greener and drops ALEC membership

The tech giant pulls out of the conservative lobbying group that is known to have pushed legislation to block renewable energy development.

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Smartphone charging spews out megatons of greenhouse gases

Juniper Research finds worldwide carbon dioxide emissions from cell phone charging will more than double by 2019.

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Google funds million-dollar contest for better power electronics

The Little Box Challenge is designed to shrink the size of power inverters, devices used in solar panels and electric cars. It's part of Google's effort to improve its green-tech image.

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Lego's deal with Shell drilled by well-oiled Greenpeace campaign

Averse to Lego's partnership with Shell, the environmental group posts a slick flick online that will make children's stomachs feel queasy.

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Where to test-ride the 'Project LiveWire' electric Harley

Harley-Davidson is taking its electric motorcycle concept on the road to see if riders laugh or lust over it. Here's where you can test-ride Project LiveWire as soon as this week.

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New nano-dots could mean cheap, paint-on solar cells

They're too tiny to see, but a new form of light-sensitive nanoparticles could flood the world with solar power.

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Solar Impulse 2 successfully completes maiden voyage

Using only the power of the sun's rays, the souped up lightweight aircraft climbs to nearly 6,000 feet and stays aloft for more than two hours.

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Silver Spring Networks buys French Internet-of-streetlights company

Streetlight.Vision's software means the US company can add new services like pollution monitoring to its wireless networks.

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How OLED lighting aims to be the star of the glow (Q&A)

As costs drop for the easy-on-the-eyes, next-gen tech, Acuity Brands pushes a new range of lighting products. This week, it'll announce the Nomi.

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Behold the new OLED lighting (pictures)

Acuity Brands has introduced four products for places like hotel lounges and meeting rooms. This week it'll debut the Nomi, an OLED light fixture for tighter budgets.

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2014 Ford Fiesta gets by on three cylinders (pictures)

With the EcoBoost option in the SE-trim Fiesta, Ford cranks 123 horsepower from a tiny 1-liter three-cylinder engine.

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Coming soon: A better, poison-free solar cell

Sure, solar power is clean and green, but to make it more efficient, researchers have had to use some nasty stuff. Until now.

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