Wildfire smoke from Alberta and British Columbia reaches US

Much of Canada and parts of the US are blanketed by smoke as wildfires in the province of Alberta continue to rage. Early May is typically the start of wildfire season in the region, but experts have said that this level activity is unusual. Images taken by the US National and Atmospheric Administration (NOAA) show the smoke from the Alberta wildfires has travelled far to the eastern portion of Canada, reaching Quebec and Ontario down to the US-Canada border. NOAA's fire and smoke map showed much of Canada covered in...