WHAT'S IT ABOUT?

WWF’s Earth Hour is a simple idea that’s quickly turned into a global phenomenon. Hundreds of millions of people turning off their lights for one hour, on the same night, all across the planet. It’s about appreciating the brilliant world we all share – and how we need to protect it. Not just for an hour a year, but every day.

This year, a record 150 countries and territories and 6602 towns and cities switched off their lights on Saturday night, for the biggest call to action for the protection of the planet.

WWF's Earth Hour in the UK

WWF's Earth Hour around the Globe

8.30pm 30 March 2013

It's not too late to sign up for WWF's Earth Hour. You can still be part of something brilliant. Sign up and join millions of people who care about a bright future for our planet.

Make sure you’ve told as many people as possible. Because a healthy planet isn’t just good for polar bears or tropical tree frogs. It’s essential for us all.