August 22, 1990 - Ralph Nader, consumer activist, speaking about at the Early Warnings Conference in Minneapolis, a meeting of print and broadcast journalists, environmental scientists and consumer activists. Nader's address was on the topic "Media and the Solar Age."
August 24, 1990 -
September 8, 1990 - Weekend presents an interview with Joe Murphy, a Minneapolis-based explorer and mountaineer. Murphy discusses his book South to the Pole by Ski, which details his experience exploring in Antarctica.
September 28, 1990 - MPR’s Tom Meersman reports on efforts by the Army Corps to locate 1437 barrels dumped into Lake Superior. The barrels originally came from the Twin Cities Army Ammunition Plant in Arden Hills from a project in which Honeywell was developing fragmentation grenades for the defense department. The secret dumping into lake took place from 1959 to 1962.
October 16, 1990 -
October 24, 1990 - Madeline Kunin, Vermont governor; and Dr. Dean Abrahamson, of the University of Minnesota, speaking at a conference on global warming sponsored by the Humphrey Institute of Public Affairs at the University of Minnesota. Kunin (a Democrat) is the chair of various Committees of the National Governors Association on energy, the environment and global climate change.
October 29, 1990 - On this Mainstreet Radio program, MPR’s Leif Enger reports on the attempts for a truce on the border of the BWCA since the 1978 Boundary Waters Wilderness Act.
October 30, 1990 -
November 3, 1990 - John Shepard, author of Minnesota Backgrounds and Minnesota: Off the Beaten Path, answers listener questions about Minnesota vacation destinations during fall and winter.
December 4, 1990 - Marcia Lowe, senior researcher associated at the Worldwatch Institute, speaking at conference sponsored by the Center for Transportation Studies at the University of Minnesota. Lowe’s address was titled " Alternatives to the Automobile: Transport for Livable Cities." After speech, Lowe answers audience questions. Marcia Lowe is the co-author of Worldwatch Institute's "State of the World 1990" report, and other papers including one on "The Bicycle: Vehicle for a Small Planet". After speech, MPR’s Dan Olson interviews Cynthia McArthur, director of the Minnesota Community Bicycle Safety Project. McArthur discusses bicycle transportation.