A Different Math
Brave New Girls: Adventures of Gals and Gizmos
Three habitats are all that are left in North America for humans in a toxic world. Callie's dad is a genius at math and is calculating how to expand their habitat. But Callie, at fourteen, and also a genius at math uses numbers coupled with a different goal - to detoxify the environment. If her calculations are correct, and her dad thinks they are, then the future is looking a lot brighter.