CHINA/

The National Stadium, also known as the "Bird's Nest", is seen reflected in a lake during Earth Hour at the Olympic Park in Beijing, 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/Kim Kyung-Hoon (CHINA - Tags: ENVIRONMENT SOCIETY SPORT)