What are you willing to do to save the planet? Would you get a panda tattoo if 100 friends agreed to recycle? (just kidding) Shave your head male pattern baldness style? Run a marathon?
Submit your challenge by posting a video on youtube. It should go something like this.
So what are you waiting for? Do something awesome for the environment and get something awesome in return.
You can also visit http://www.youtube.com/user/earthhour/iwiyw for more details and ideas.
For more information please see Leo Sean Low from 5 Batai (012-9196133).