In 2011, around the world hundreds of millions of people, in many 1000s of cities, at 100s of landmarks, on all 7 continents, switched off their lights for 1 hour. Such a simple, powerful act of celebration for their one and only, truly amazing, life giving blue and green planet.
"One awesome positive global blackout mexican wave!"
Picadilly Circus, London, United Kingdom. Before & After Earth Hour 2011.
See more Earth Hour Before & After pictures here »
What is Earth Hour?
It is the biggest environmental awareness campaign ever seen!
When is it?
Earth Hour takes place once every year. On the last Saturday of March.
What's the aim?
To raise environmental awareness and get us doing small things in our daily lives that together can have huge impacts.
What does it involve?
Simply turning off your lights for 1 hour. Earth's hour.
How useful is this?
Earth Hour is a highly "visible" symbolic act.
One that millions of people can easily join in with.
And one that allows you to have fun while sending out a serious message to our politicians and governments, that says:
When is it?
Earth Hour takes place once every year. On the last Saturday of March.
What's the aim?
To raise environmental awareness and get us doing small things in our daily lives that together can have huge impacts.
What does it involve?
Simply turning off your lights for 1 hour. Earth's hour.
How useful is this?
Earth Hour is a highly "visible" symbolic act.
One that millions of people can easily join in with.
And one that allows you to have fun while sending out a serious message to our politicians and governments, that says:
"I care about my planet!"
Beyond the Hour
Earth Hour wants you to go beyond the hour. Beyond climate change. Where every individual, government and business can make their commitment to environmentally sustainable action for the year following Earth's Hour.Earth Hour 2012: Official Video
What happened in 2011?
(left) What happened when the lights went off in Hong Kong...
Earth Hour 2012?
Want to join in for Earth Hour 2012? The date is set for Saturday 31 March.
Sign up to to get WWF's free eNewsletter (right) for the latest updates on Earth Hour 2012 and other great green news about our truly extraordinary planet...
Sign up to to get WWF's free eNewsletter (right) for the latest updates on Earth Hour 2012 and other great green news about our truly extraordinary planet...
