Earth 2011 will be taking place on 26th March at 8.30pm – are you taking part?
Earth Hour is organised by the WWF and first started in 2007 when 2.2 million individuals and more than 2,000 businesses in Sydney, Australia turned their lights off for one hour to take a stand against climate change.
People across the world came together in 2010 to protect our planet by turning their lights off. Darkness fell across 128 countries and iconic buildings in Europe, Asia, Africa and America were switched off.
Why not join the Earth Hour sign up challenge online, where a map of the UK indicates which areas have the most sign ups – with the Shetland Islands out in front, will you sign up to the challenge and get your hometown to the top?
You can find more information about Earth Hour and sign up here.