Get involved
Switch off and support WWF’s Earth Hour
Saturday 27 March 2010 at 8.30pm, we want a billion people around the world to switch off their lights for one hour – WWF’s Earth Hour. Show you care about climate change.
Sign up if you are switching off!
If you are one of the millions who will be switching off, register your support.
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Share your Earth Hour moments
Inspire the world about WWF's Earth Hour with your light writing, photos and videos. We'll share the best on our site over the coming weeks and months.
Uploading is simple!
Countdown to Earth Hour
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Know others who can help?
Encourage your local authority, schools and businesses to support WWF’s Earth Hour.