SXSW 2011: Going Green--In the Zone (Green Zone, That Is) By Robin CookMarch 19, 2011 By Robin CookMarch 19, 2011 Popular Stories Rare Albino Raven Murdered An Elegy for America's Oldest Bald Eagle Against the ‘Bird Killer Amendment’ How to Make a Bird-Friendly Sanctuary And the Winner Is . . . Festival goers chillaxing on a bench made of recycled cellphones The hamster wheel, where you can charge your cellphone and get a workout as well. Solar pumps, also for recharging cellphones.