Earth Hour

Between 8-9pm on Saturday 29 March 2008, millions of people around the world took part in Earth Hour 2008 – a WWF initiative asking people to turn their lights off for one hour.

Last March, in Sydney, 2.2 million people and 2,100 businesses did exactly that as a demonstration of their support for global action against climate change. Their inspirational collective effort reduced the city's energy consumption by a whopping 10.2% during that hour – equivalent to taking 48,000 cars off the road.

This year, Earth Hour has gone global with WWF-UK urging people across the United Kingdom to join in with millions of others across the world.  Famous UK buildings – from Brighton Pier to Highgrove House to the Spinnaker Tower in Portsmouth – have joined iconic global landmarks such as the San Francisco Bay Bridge and The Sears Tower in Chicago by promising to switch off for Earth Hour. See how it went on the Earth Hour website.

Join Earth Hour 2009

It's easy to become one of the millions of people worldwide involved in Earth Hour – and it can be great fun! From enjoying a candlelit pint in your local pub (if it is taking part of Earth Hour) to organising a party at your home with games in the dark, or simply taking time to look at the stars.

If you're planning to join the Earth Hour in your home or you're a local business who'd like to pledge your support, please fill in the form on the WWF website.

Do more

Switching off your lights for one hour isn't going to solve the challenge presented by climate change. If we really want to make a difference, we have to live the principles underlying Earth Hour every day.

If you want to do more to tackle climate change, support WWF's campaign at www.wwf.org.uk/getonboard