So, had another idea:

千里之行，始於足下

"A journey of a thousand miles, begins with a single step"

SAVE THE WORLD - TODAY

An app to encourage practical environmentalism.

Mechanics - Each day the app suggests a practical way in which you can live a more environmentally friendly way of living. Nothing too outlandish. Definately do-able. You can click on a link to a website that shows you why that act is important. It’s a challenge. Do it, mark as done, and then gain points.

Positives and Negatives

Relies on trust that the user will actually carry out the task.

Could easily be tied into a sponsor or reward scheme so that successful users can gain some benefit.

Good for kids.