Intense wildfires in western Canada have sent plumes of smoke across North America, and fires in Oregon, Idaho and California are also causing air quality to drop.

As the East Coast settled down into a passive margin, with no active tectonics, things were heating up in the West. The widening Atlantic Ocean pushed the continent over the Panthalassa Ocean ...

The number of gray whales migrating along the Pacific Coast of North America has steadily declined by nearly 40% from a 2016 peak, and the population produced its fewest calves on record this year ...

Satellite images show the strong Pineapple Express atmospheric river as it barrels from the Pacific Ocean toward the West Coast.

Scientists warn 1,000-foot ‘mega-tsunami’ could wipe part of America off the map Alaska, Hawaii and areas along the mainland West Coast would be at risk if an earthquake erupts along the ...