"The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand." Carl Sagan

Energy Secretary Chu at COP-16: Building a Sustainable Energy Future

very intersting article in USA Today...totally off off of your subject..Scientist say their may be trillions of more earth like planets in outer space.

http://content.usatoday.com/communities/ondeadline/post/2010/12/astronomers-triple-estimate-of-stars-think-trillions-of-earths-may-exist/1?csp=obnetwork

this looks very promising...unfortunately you have a great tide of institutions that are against this wave of new energy...therefore it squashes funding for this kind of research..I think when we reach the point when it is very hard to go outside and just take a simple breath to breath..and I believe we will get to that point...however not in my lifetime ..we may begin to move forward

It's an uphill battle, but guys like Dr. Steven Chu will "never surrender"