JRE12. Paris (France), 29/03/2014.- View on the Eiffel Tower with the lights turned off for the Earth Hour in Paris, France, 29 Mars 2014. The Eiffel Tower's lights were turned off for five minutes. Earth Hour takes place worldwide at 8.30 p.m. local time and is a global call to turn off lights for 60 minutes to raise awareness of the danger of global climatic change. EFE/EPA/ETIENNE LAURENT
People surround lit candles forming the number "60" and reading earth hour" during the Earth Hour event on March 29, 2014 at the Roman amphitheater of Carthage on the outskirts of Tunis. Thousands of cities around the world turned off lights Saturday emblematic buildings during the "Earth Hour", a global event to warn of the dangers of climate change. The campaign, which is to turn off the lights for one hour starting at 20:30 local time, was intended to raise funds for projects of environmental protection this year. AFP PHOTO / YOSRA BEN HASSINE
A man (center row, 3rd R) looks at his mobile phone as people hold candles outside the Galileo Galilei planetarium to observe Earth Hour in Buenos Aires March 29, 2014. Lights go off around the world at 8.30pm local time in a show of support for renewable energy during Earth Hour, an event organised since 2007 to promote a sustainable future for the planet. REUTERS/Marcos Brindicci (ARGENTINA - Tags: ENVIRONMENT ENERGY)