left: Speaker Dr. Paul MacCready’s company, AeroVironment, developed a lightweight, 247-foot solar-powered plane, Helios, that flew over Hawaii and reached an altitude of 96,863 feet. right: Speaker John Stossel, co-host of 20/20, on the cover of his bestselling book.

Roy Zimmerman

Roy Zimmerman is a singer, songwriter, political satirist, and social commentator. Tom Lehrer said, “I congratulate Roy Zimmerman on reintroducing literacy to comedy songs.” Zimmerman has inflicted satirical pain on politicians from Bill Clinton to Jesse Helms, and on causes from school prayer to gay marriage to the militia movement.

This performance is NOT on the Environmental Wars recordings set.