1.) Host Peter Berle talks with David Hahn Baker of political consultant firm Inside Out, about environmental racism and the environmental justice movement. 2.) In the segment "Ear to the Ground" Linda Anderson talks with Betsy Marsten, editor of the High Country News, about the paper and its coverage of environmental issues of 10 western states. 2.) Karen Kelly reports on an artificial flood that was created in the Colorado River to study the effects on the ecosystem. 3.) Thomas Lalley reports on the Yakataki comet and talks with Don Brownley, professor of astronomy at Washington University, about comets.