The sustainable city of Porena: THE VIDEOby steveJuly 12, 2009April 23, 2010 This is the video based on the novel “Inventing for the Sustainable Planet” Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.