About WWF’s Earth Hour
Sign up now to join in the next Earth Hour lights-out
Saturday 26 March 2011
Sign up now to join in!
Watch the inspiring videos below to find out more...
Why WWF cares
Climate change is one of the most serious threats facing people and nature, and demands urgent global action. Unless we prevent average temperatures rising 2°C above pre-industrial levels, we face a high risk of severe and irreversible changes in the planet’s natural systems. Find out more.
Global impact
Watch the video below to see how Earth Hour has grown into a global event and see images of how Earth Hour 2010 became a night to remember!
Get involved!
You can now sign up to join in earth Hour 2011 as an individual, organisation, business or school.
Watch this short film to find out more about WWF’s Earth Hour origins.
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Elsewhere in the UK
