U.S. States bordering Canada could feel the greatest impact of President Donald Trump's 35 percent tariff on Canadian products, which are set to go into effect August 1. Montana, Maine, Vermont ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

Six Western states and two Canadian provinces have agreed to develop their own regional system to combat global warming by reducing greenhouse gases. While their approach has its detractors, it ...