Folk singer-songwriter and composer Jim Post and musician Randy Sabien discuss their upcoming performance at the Levy Center in Evanston, Illinois. The collaborators discuss their musical backgrounds and their opinions on global warming, religious views, and musical influences.

According to Barry Commoner's book, "Making Peace with the Planet," we, as the human species, are in and are witnessing a war between the ecosphere and the technosphere. Commoner explains that today's cars emit a lot of smog into the big cities. Trucks move consumer goods from place to place, using four times more fuel than trains. Everyone should ask themselves what is their interest in the quality of the environment and that of nature.