Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at ...

S moke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National ...

Kids and teens across America are increasingly getting high on nitrous oxide, better known as "laughing gas," to get high.

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those ...