This combination picture of two photographs show the Wat Arun Ratchawararam Ratchawaramahawihan Buddhist temple before (top) and after (bottom) its lights were turned off to mark Earth Hour in Bangkok on March 29, 2014. Lights will go off in some 7,000 cities around the world for this weekend's Earth Hour event, which will aim to raise hundreds of thousands of dollars for environmental projects worldwide. AFP PHOTO/PORNCHAI KITTIWONGSAKUL
RIT01. Manila (Philippines), 29/03/2014.- A Filipino couple observes buildings who tuned off their lights during the celebration of Earth Hour in Bonifacio Global City, south of Manila, Philippines, 29 March 2014. Earth Hour is a campaign to encourage businesses, communities and individuals to take the simple steps needed to cut their emissions. The event is the seventh annual 60 minutes of self-imposed darkness intended to highlight the need to cut greenhouse gases behind global warming. EFE/EPA/RITCHIE B. TONGO
HHY06. Singapore (Singapore), 29/03/2014.- Spider-Man of 'The Amazing Spider-Man 2' and the WWF Panda mascot are seen on stage during Earth Hour Kick-Off with Spider-Man in Singapore, 29 March 2014. Earth Hour Kick-Off with Spider-Man, The First Super Hero Ambassador for Earth Hour, is a global movement organized By WWF (World Wide Fund For Nature) to encourage the public to switch off lights and conserve energy. EFE/EPA/HOW HWEE YOUNG