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

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.

Image credit: NASA Worldview. The Great Lakes are an amazing natural resource ... the U.S. population and one-third of the population of Canada live within their drainage basin.

Canada and the U.S. are being asked to designate microplastics a chemical of mutual concern under the Great Lakes Water Quality Agreement. The commission is responsible for identifying and ...