If you read the Star, they have a pullout on Green Every Day. They list the things you should do to be nice to the planet. I may not be 100% green, but my family do what we can to protect the environment.
And to educate my will-be-six-in-a-week daughter Nadia about our responsibility towards the earth, I found these great websites, THE GREENS and EekoWorld. Share them with your kids. It's better to start them young.