Millions of people around the world switch off their lights for Earth Hour at 8.30pm (20:30) in their local times on the last Saturday of March each year. In 2013, Earth Hour occurs one week earlier, on March 23 which is today. Join the global community at www.earthhour.org and find out how you can be the inspiration for the change you want to see in the world.
But let another video remind us what happened last year in Earth Hour when 150 countries, a record-number participated in the event. Citizens from 6,494 cities around the world shared the same password for the joint effort required for a sustainable future. Worldwide social media worked resolutely to promote the message of Earth Hour. Twitter and Facebook helped in linking even the most remote areas of the planet. Iconic buildings across the world including the Eiffel Tower in Paris and the Opera House in Sydney turn off their lights as part of Earth Hour.