Use your power to change climate change!

On Saturday 28th of March 2015 at 8.30pm, millions of people all around the world turned off the lights for one hour, to celebrate their commitment to the planet. Join the movement, use your power and together, let's go beyond the hour.
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Go back in time with Earth Hour

year 2014

  • 162
  • 1,2 billion
    times “Earth Hour” or #EarthHour appeared on Twitter timelines

  • 7000

Hundreds of millions of people. Spider-Man as Earth Hour’s first ever Superhero ambassador

year 2013

  • 154

Earth Hour celebrated in Space, with Russian cosmonaut Roman Romanenko and astronaut Chris Hadfield sending messages from the International Space Station.

year 2012

  • 152
  • 6950

More than 200,000 individuals accepted an ‘I Will If You Will’ challenge. Celebrities got involved to inspire action beyond the hour including Kumi Naidoo (Greenpeace) and Miranda Kerr.

year 2011

  • 135
  • 5251

This was the first Earth Hour to go beyond the hour. Supporters were challenged to go the extra mile by taking tangible action to make a difference for the planet.

year 2010

  • 128
  • 4616

3 months after the failure of COP15 in Copenhagen, Earth Hour succeeded in being the global call to action to stand up, take control and lead the journey towards a sustainable future.

year 2009

  • 88
  • 4000

The Vote Earth Campaign artwork was created by Shepard Fairey, the artist who created the iconic imagery for Barack Obama in the US Presidential Elections. Vote Earth was the first global election between Earth and global warming.

year 2008

  • 35
  • 371

At 8pm on the 29 March 2008, millions of people in some of the world's major cities used the simple action of turning off the lights for one hour to deliver a powerful message about the need for action on global warming.

year 2007

  • 2100
    Business participants
  • 2.2
    Million people

The inaugural Earth Hour was held in Sydney, Australia.

Use your power to switch off the lights of the Eiffel Tower.

Thank you for switching off the lights of our digital Eiffel Towers. There are only a few lights left to turn off so you can continue to show your support for Earth Hour before the 2016 edition coming up.
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We Love Cities

Join the global celebration of the most lovable sustainable cities. The Earth Hour City Challenge competition has come to an end. Visit the city's page on and discover the winners.
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WWF France and TopTen Guide joined forces to launch EcoGator, a free app that will become your personal advisor for energy saving shopping and living.

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