Eton Rugged rukus
Devin Coldewey / NBC News
green

Energy savers rise above gimmick status, with smarter, cooler, greener devices 

Tokelau solar
Powersmart
solar

Tiny Tokelau to be world's first solar-powered country

Sanno
Google Maps
japan

In wake of Fukushima, Japanese village goes all-solar

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Fiber
Xiaodong Li
energy

Your cotton T-shirt could soon charge your phone

AP
smartphone

Phone tracking tech to reward walking, biking