All Things Considered

What are the risks of mining in the Boundary Waters watershed?

A rainbow rises over a lake.
A rainbow rises over the South Arm of Knife Lake in the Boundary Waters Canoe Area Wilderness in July 2021.
Dan Kraker | MPR News

In April, a mining ban near the Boundary Waters Canoe Area Wilderness was lifted. Environmentalists have long warned that mining in the area could pollute its ecosystem.

In early June, Ali Ling, an assistant professor of civil engineering at the University of St. Thomas, told MPR News that mining near the federally designated wilderness area could be done safely.

David Chambers, president and founder of the Center for Science in Public Participation, a nonprofit formed to advise public interest groups and tribal governments on mining and water quality, spoke with MPR News host Clay Masters to offer a counterpoint.

Use the audio player above to listen to the full conversation.