Justine McKeen, Walk the Talk

Meet Justine McKeen. She’s the Queen of Green! She talks a little too much, bosses a little too much and tells the truth, just not all at once. She’s trying to save the planet, one person at a time, and when she decides to get something done, it’s a lot of fun.
In Justine McKeen, Walk the Talk , the second book in the Justine McKeen series, Justine decides there are too many cars idling in front of her school. So she comes up with a solution that should help keep the air cleaner. But she soon discovers not many adults trust her crazy ideas.