This combo of pictures show Malaysia's landmarks Petronas Twin Towers (R) and Kuala Lumpur Tower (L) seen with the lights on (top) before the Earth Hour and with the lights off (bottom) in Kuala Lumpur on March 31, 2012. Millions of people were expected to switch off their lights for Earth Hour on March 31 in a global effort to raise awareness about climate change that was even to be monitored from space. .AFP PHOTO/Mohd Rasfan
Malaysia's iconic Patronas Twin Towers (C) stand illuminated before its lights are turned off to mark Earth Hour, in Kuala Lumpur on March 31, 2012. Millions of people were expected to switch off their lights for Earth Hour on March 31, in a global effort to raise awareness about climate change. Since it began in Sydney in 2007, Earth Hour has grown to become what environmental group WWF says is the world's largest demonstration of support for action on carbon pollution. AFP PHOTO/Saeed KHAN
People gather in front of Malaysia's iconic Patronas Twin Towers (C) as they stand unlit during Earth Hour in Kuala Lumpur on March 31, 2012. Millions of people were expected to switch off their lights for Earth Hour on March 31, in a global effort to raise awareness about climate change. Since it began in Sydney in 2007, Earth Hour has grown to become what environmental group WWF says is the world's largest demonstration of support for action on carbon pollution. AFP PHOTO/Saeed KHAN