Earth Hour is the world's biggest celebration for our amazing planet. Hundreds of millions of people coming together in a symbolic and spectacular lights out display.
Join WWF's Earth Hour on March 29th 20:30 (GMT)
http://earthhour.wwf.org.uk/about-wwfs-earth-hour
Join WWF's Earth Hour on March 29th 20:30 (GMT)
http://earthhour.wwf.org.uk/about-wwfs-earth-hour