SXSW 2011: Going Green--In the Zone (Green Zone, That Is) By Robin CookMarch 19, 2011 By Robin CookMarch 19, 2011 Popular Stories Spying on Puffins Against the ‘Bird Killer Amendment’ How to Make a Bird-Friendly Sanctuary And the Winner Is . . . A Very Presidential Red-tailed Hawk 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.