Although collaboration is one of the three fundamental principals we work by, it is also a powerful tool to affect change. Not just in advertising and marketing, but the change that comes from people working together towards a greater goal. And the goal set forth by Earth Hour is a goal worth achieving.

Earth Hour is about taking a stand against the greatest threat our planet has ever faced — global warming.

With the simple act of turning off your lights for one hour on March 29, 2008, you can take part in an event that is sweeping the globe.

And just how much of an impact can turning off your lights for a mere 60 minutes have? Consider this;

Earth Hour: March 31 2007. For one hour, Sydney, Australia made a powerful statement about the greatest contributor to global warming–coal-fired electricity–by turning off its lights. Over 2.2 million Sydney residents and over 2,100 businesses switched off, leading to a 10.2% energy reduction across the city.

In 2008, 24 global cities will participate in Earth Hour at 8pm on March 29. And as of this writing, over 206,000 people and 15,000 businesses have also signed on to do their part.

There are many ways to get involved, from spreading the word or holding your own Earth Hour event, to making Earth Hour part of your everyday life at home and at work.

1. Sign up for Earth Hour
2. Get involved and create a bigger, better Earth Hour
3. Reduce your impact on climate change
4. Learn how to organize Earth Hour in your town or local community.
5. Buy an Earth Hour T-shirt to show your support