Last Saturday night, people around the world turned their lights off to conserve energy, in celebration of the Earth Hour 2009. Click to see some amazing city skyline transitions from light to dark.
I did not hear about this event until Sean and Alice brought it up, when I took them sightseeing and they questioned why the office buildings don’t shut their lights off at night. Obviously, you don’t see New York in this series of pictures as an Earth Hour participant.