The mercury is stored in sediment along the Yukon River’s banks, and as the permafrost that holds that sediment in place thaws, it’s threatening to release thousands of years’ worth of mercury into one of the North’s biggest waterways.
The mercury is stored in sediment along the Yukon River’s banks, and as the permafrost that holds that sediment in place thaws, it’s threatening to release thousands of years’ worth of mercury into one of the North’s biggest waterways.