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You can train today on EarthHour.fr to turn off the light.
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Discover Earth Hour

Use your power to change climate change!

On Saturday 28th of March 2015 at 8.30pm, millions of people all around the world will turn 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.
Take action

year 2014

  • 162
    Countries
  • 1,2 milliard
    de mentions Earth Hour sur Twitter le 29 Mars 2014 #EarthHour
  • 7000
    Cities

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

year 2013

  • 154
    Countries

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

year 2012

  • 152
    Countries
  • 6950
    Citie

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
    Countries
  • 5251
    Cities

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
    Countries
  • 4616
    Cities

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
    Countries
  • 4000
    Cities

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
    Countries
  • 371
    Cities

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

  • 2000
    Business participants
  • 2.2
    people

The inaugural Earth Hour was held in Sydney, Australia.

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

On the 28th of March 2015 in Paris, for the 9th edition of Earth Hour, the lights of the Eiffel Tower will go off.
Use your power today, it's your turn to switch off the lights of the Eiffel Tower!

Go to earthhour.paris

We Love Cities

Join the global celebration of the most lovable sustainable cities.
Paris, Nantes and Besançon were selected for the Earth Hour City Challenge competition.
Visit the city's page on Welovecities.org and click the vote button.

Vote for your favorite sustainable city

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In order to receive all the information about the Earth Hour 2015 event and all the info to help WWF change climate change, I subscribe to the Earth Hour France Newsletter.
At WWF, we assure you that all your information is strictly confidential and you can unsubscribe anytime.

Download the EcoGator App

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.