Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on May 22, 2008
Do you have an eco question that needs answering? Well it's Mr Green to the rescue! Bob Schildgen was managing editor and book review editor of Sierra magazine for many years, and continues to write Sierra's popular "Hey Mr.Green" column. We'll pay him a visit and see what questions he's answering these days.
You can ask him a question yourself, by heading to his website at www.heymrgreen.com