People, governments, companies, and organizations observed Earth Hour 2011 as 134 countries switched off lights worldwide Saturday, March 26, at 8:30 p.m. The movement to raise awareness about energy consumption took on added relevance with a Japanese nuclear power station crippled after the earthquake and resulting tsunami there. Gathered here are a series of before-and-after photographs from this year - which (starting with the second one below) will fade between "on" and "off" when clicked.This effect requires javascript to be enabled. -- Lane Turner ( 15 photos total