Paul Hawken gave this speech a little while back. my explaination will not do it justice.
This should get you thinking..
http://designthinking.ideo.com/?p=328#content
* not totally photography related more like "earth" related.
Patrick
"Great Leaders are very clear about what they are making, but flexible about how it gets made" - b. Johansen
books recommended.
Why We Buy: The Science Of Shopping