article_snippet: Earth Hour started in Samoa and will finish in Tahiti, sweeping through 24 time zones and six continents as some of the most recognisable buildings in the world turned out its lights.
article_snippet: Earth Hour was launched in 2007 in Australia and has spread globally since .
article_snippet: The Forth Bridge joined the hundreds of landmarks taking place worldwide as The Forth Bridge also turned off The Forth Bridge lights to mark Earth Hour .
article_snippet: The bright lights of Leifeng Pagoda are seen behind the West Lake before Earth Hour in Hangzhou, Zhejiang province, eastern China .
article_snippet: The tower suddenly darkened as Earth Hour swept across China as The tower made The tower way across 24 different time zones .
article_snippet: The business district in Jakarta, Indonesia, also darkened as more than 700 landmarks worldwide took part in Earth Hour .
article_snippet: He said: 'Switching off the lights for Earth Hour is a statement of intent by everyone who takes part, making everyone who takes part part of a community which recognises that we really do have one planet and that we have it not just for we but also for we children and grandchildren. '
article_snippet: WWF works hard to address many of the environmental issues we face on one planet but Earth Hour is a chance for everyone to show that everyone care and are willing to do everyone bit to help because collective action has never been more vital.
article_snippet: Last year over nine million people took part in Earth Hour in the UK.' 'nine million people joined more than 1,000 businesses and organisations as well as the 4,600 schools which participated alongside some of the country's best known landmarks including Buckingham Palace, Edinburgh Castle, Tower Bridge, the Senedd, and Wembley Stadium.'