The Canadian Press 04/06/2024 11:27 A northern Ontario First Nation is suing the governments of Ontario and Canada over ongoing mercury contamination in a river system that flows through its territory. Grassy Narrows First Nation alleges the governments breached their obligations by failing to ensure the community could safely practise its right to fish. The lawsuit alleges the governments first allowed the English-Wabigoon river system to be contaminated, then failed to remediate it, all while authorizing industrial activities that worsened the harm. The legal action comes weeks after a study suggested discharge from a paper mill upstream of the community is exacerbating mercury contamination that dates back decades. Researchers behind the study said that while the mill’s wastewater doesn’t contain mercury, the combination of sulphate and organic matter in it…