A new global standard on tailings dams aim to prevent mining disasters like the Brazil dam collapse in 2019 – but there's more to do.
Bankrupt oil and gas companies must clean up old wells, yet taxpayers are still stuck with the bill for abandoned mines.
Historical gold mining at the Giant Mine near Yellowknife, N.W.T. released toxic arsenic into the environment. Snowshoe hares are showing signs of poisoning.