If President Donald Trump's threat to tariff Canadian imports by 25% goes forward, 200 years of peaceful and profitable Great Lakes maritime trade will be at risk.

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

It happened so quickly that a Canadian freighter ship around 600 feet long got stuck on its route from Buffalo back to Canada. Overall, about 23 percent of the Great Lakes are frozen up to this date.

Credit: Wikimedia Commons About 13,000 years ago the melting glaciers that covered Minnesota and Canada created a vast lake, bigger than all the Great Lakes of today combined. Geologists later ...

Areas off the Great Lakes are ... with Environment Canada. But the warmer the lakes get, the more heat and moisture there is for those blasts of Arctic air to pick up, intensifying snowfall.