For the first time this year, Singapore is taking part in the Earth Hour 2009.

What started off as a campaign in Sydney in 2007 has turned into a global movement that has 50 million people in 35 countries participating last year. I joined in last year, and I am definitely doing it again this year. It is simple. Just turn off all the lights for 1 hour at 8.30pm, showing that it is possible to join together as a global effort to take action on global warming.