I’m doing persuasive video: to use solar/wind energy, what is as good inspire song similar to One Tribe?

I’m doing a video for school that has to persuade people to use nonrenewable resources such as wind or solar power. What is a good song that is very similar to One Tribe by the Black Eyed Peas?

Thanks!
~Mez

P.S- please no rap, metal, hard music, etc. Only sweet music!

World – Five For Fighting

http://www.youtube.com/watch?v=1JDY1KvoQYk