I have found a website that I think may interest you:
The site contains the story behind a Native American ceremony that will be performed on October the 6, 2006 at 11:00 PM. Eastern Daylight Time in the U.S.A. At that time they invite the world’s inhabitants to participate in the ceremony in an effort to protect the environment from man’s intervention. They do not ask for any contributions and they are not selling anything. All they are asking is for 15min. of your time to think about what you can do to help save us from ourselves.
Native American Ceremony