Very "Green" Energy Ideas

I found an interesting article on some out of the box ideas to generate/save energy which are being experimented with in Europe. They include such things as driving ships with computer controlled kites and siphoning heat from roads and parking lots warmed by the sun to heat homes and offices.

I agree with the article in that it would be easy to implement many out of the box ideas in the US, but in the US energy is still cheap and we think it will always be. Unfortunately we won't see major changes until we're in an energy crunch.