Another standout is Great Slave Lake in the Northwest Territories. At 2,105 feet deep, it’s the deepest lake in Canada. Its crystal-clear waters are fed by the Mackenzie River system.

The small plastic particles are "ubiquitous" in Great Lakes water, sediment, plants, fish and beaches, an international panel of scientists said.

Patrick De Haan, head of petroleum analysis at GasBuddy, warned Americans in the certain regions may be most affected by tariffs on Canada. Here's what to know.