Many iconic landmarks will be switching off their lights such as the Clifton Suspension Bridge in Bristol, Nelson's Column in London, the Forth Bridge in Edinburgh, the Millennium Stadium in Cardiff, Table Mountain in Cape Town, Sydney Opera House and Paris' Eiffel Tower.
The environment charity WWF is encouraging everyone to join the big switch off by dimming and switching off lights at home and of civic buildings and iconic landmarks. Restaurants and bars are asked to get involved by holding candlelit dinners on the night and members of the public can also hold their own events such as lights out parties. People can sign up to support WWF's Earth Hour by visiting wwf.org.uk/earthhour or by texting Earth to 84880
"We want to create a groundswell of support and this is a chance for the people of Bristol to be part of a global action on climate change. Global leaders meet at the UN conference in Copenhagen later this year to determine how the world will work together to tackle climate change in future. A billion people across the globe turning off their lights sends a loud and clear message to politicians that they must make it happen."
Sign up and spread the word about WWF's Earth Hour with downloadable posters, light switch covers, Earth Hour toolkits and more at: wwf.org.uk/earthhour
