On Saturday 27 March 2010 at 8.30pm, we want a billion people around the world to switch off their lights for one hour WWFs Earth Hour. Show you care about climate change.
WWF's Earth Hour 2009 took the world by storm as it travelled east to west and hundreds of millions of people switched off their lights. Earth Hour was embraced by people in over 3,000 cities and towns, nearly 1,000 landmarks and more than 83 countries around the world.
Whether youre in Kent or Cumbria, Lancashire or Lanarkshire, Antrim or Anglesey see how your part of the UK measures up on our interactive 3D sign-up map. And find out how many more sign-ups it takes to top our chart in the exciting run-up to Earth Hour!http://earthhour.wwf.org.uk/