This Saturday, March 29th, at 8pm local time, the World Wide Fund for Nature is asking us to turn our lights off and reduce electricity use for one hour.

It started with a question: How can we inspire people to take action on climate change?

The answer: Ask the people of Sydney to turn off their lights for one hour.

On 31 March 2007, 2.2 million people and 2100 Sydney businesses turned off their lights for one hour - Earth Hour. If the greenhouse reduction achieved in the Sydney CBD during Earth Hour was sustained for a year, it would be equivalent to taking 48,616 cars off the road for a year.

I’ve got a bag of tea lights and a bottle of wine that says this will be a good time.  Get more info at Earth Hour.