Horizon - 1991 (November 6)
Operation Earth Edition. Arizona Town Hall Package, J. Leshy, S. Barnes, S. Wheeler (Kimball); Town Hall Background Package (Kimball); Dave Cutty Commentary. Segments on an Arizona Town Hall at the Grand Canyon concerning better care of the environment, what the Town Hall is and how it works, and Dave Cutty's guest commentary (a first-hand account of the Town Hall's proceedings).
- Grant, Michael, 1951- (Host)
- Kimball, Camille (Reporter)
- Leshy, John D. (Interviewee)
- Public Broadcasting Service (Broadcaster)