This is a link to a page on the World Watch Institute website which gives a short description of a couple of projects that are competing for $100,000 in The Buckminster Fuller Challenge.
I found out about this post from following BuckyFullerInstiute on Twitter.
I want to ask the question:
How big is big enough when planning sustainability projects?
If you watch this (short) video on youtube:
you may get what I mean about BIG IDEAS.