WWF’s Earth Hour is the biggest movement to protect our planet.
Hundreds of millions of people around the planet take part in WWF’s Earth Hour every year. This year around 9 million took part in the UK alone.
People did a wide range of things around the hour to show they care about our planet’s future. Millions choose to mark Earth Hour by going ‘lights out’ for 60 minutes at 8.30pm – a symbolic show of solidarity for the planet.
The world’s biggest landmarks – like Sydney Opera House, the Eiffel Tower, Buckingham Palace, and Edinburgh Castle – switched off lights as a visual display of their commitment too.