Lake Koocanusa

A new American study has confirmed southeastern British Columbia coal mines are contaminating waters shared by Canada and the U.S., adding the miner's attempts to remove selenium from wastewater aren't making much difference to the amount flowing south.

The United States government, including President Joe Biden's White House, has joined calls for Canada to participate in a probe of cross-border pollution coming from coal mines in southern British Columbia.

The agency that mediates disputes between Canada and the United States over shared waters is pleading with the federal Liberals to join an investigation into contamination from British Columbia coal mines before the Americans move on their own.

The federal government will join an environmental assessment of a major expansion to a proposed southern British Columbia coal mine.