More than 150 countries across the world, switched off their lights for an hour to support action to create a sustainable future for the planet.Environment charity WWF organised the Earth Hour event which saw iconic buildings such as Big Ben, Times Square in New York City, The Empire State Building and parts of Chicago also took part. The Sydney Opera House, Eiffel Tower and the World Trade Centre in China. Along with that, the world largest LCD screen at a shopping mall in Beijing and the entrance to Sydney's Luna Park were switched off to raise awareness.
The event, which took place at 8.30pm local time around the world, started in Fiji, New Zealand and Australia.
