Iconic buildings and landmarks from Europe to Asia to the Americas will stand in darkness. People across the world from all walks of life will turn off their lights and join together in celebration and contemplation of the one thing we all have in common – our planet. So sign up now and let’s make 2010 the biggest Earth Hour yet!.
It’s Showtime! Show the world what can be done.
Earth Hour by WWF
Earth Hour is organized by WWF. With almost 5 million supporters and a global network in over 100 countries, it’s one of the world's largest and most respected independent conservation organizations. WWF’s mission is to stop the degradation of the Earth's natural environment and build a future where people live in harmony with nature.
Earth Hour timeline
Turn back the clock on Earth Hour and discover why, how, where and when it all started.
Why get involved?
Put simply, because our future depends on it! Earth Hour has done a lot to raise awareness of climate change issues. But there’s more to it than switching off lights for one hour once a year. It’s all about giving people a voice on the future of our planet and working together to create a sustainable low carbon future for our planet.
The future can be bright
New economic modelling indicates the world has just five years to initiate a low carbon industrial revolution before runaway climate change becomes almost inevitable. But it can be done, and the long term benefits will be enormous. So now's the time to take a stand and give world leaders the mandate they need to make the right climate deal.