Lights Out For Earth

Almost a billion people in more than 2,800 cities worldwide are expected to turn off lights for Earth Hour tonight beginning at 8:30 local time.
Toronto Star article HERE
official 'Earth Hour' website HERE

Related:
Sydney first major city to mark Earth Hour 2009
NZ dims its lights for Earth Hour
Chinese skyscrapers, malls and homes to "switch off" for Earth Hour
Fiji switches off light as part of Earth Hour