Shifting from a fossil fuel economy to a more sustainable and independent one on an individual basis is major challenge. To do it on a national level is a daunting task. Here is a thoughtful essay on one person's approach on how to get there. It's a long, but worthy read for all concerned.
http://www.theoildrum.com/story/2006/11/27/0432/3533
http://www.theoildrum.com/story/2006/11/27/0432/3533