If you have always wondered what you can do to help our planet, here is your chance. On Saturday March 31st, join the millions of people that are celebrating Earth Hour. All you have to do is switch off all lights and other electrical devices for just 60 minutes from 8.30 - 9.30 pm. This minor action will go a long way in helping global warming.

Earth Hour was first proposed by the Australian chapter of the Word Wildlife Fund in 2007. That year, 2.2 million households and 2,100 businesses flipped the switch for an hour, in Sydney. This small sacrifice resulted in conserving 10% of the electricity consumed by the city in a normal hour - the equivalent of saving the amount of carbon dioxide emitted by 48,000 cars in 60 minutes.

This revelation made an impact on so many people across the globe that in 2008, over 50 million from over 5,000 cities joined in and the numbers have only been growing since. Today, Earth Hour is the largest voluntary environmental event in the world, one even observed by famous city landmarks like the Golden Gate Bridge in San Francisco, Eiffel Tower in Paris and the Opera House in Sydney.

Now the organizers are challenging people all over the world to go beyond the hour - That is, make small lifestyle changes all year so that we can all help reverse global warming, more effectively.

Are you up for the challenge? Can you set aside your television and electronic gadgets for an hour this Saturday and maybe even beyond that? If so, be sure to sign up at www.earthhour.org. And, don't forget to spread the word around so that everyone can do his or her share in saving our planet - One light bulb at a time!

Resources: Earthhour.org.