Wildfire smoke fills U.S., Canadian skies as officials ponder options

Crooner Perry Como once sang "the bluest skies you've ever seen are in Seattle," but this week the city registered its worse air quality of the past two decades. "There's a smoke season, and it's probably going to be more frequent and longer than it has been in previous years," said Environment and Climate Change Canada meteorologist Armel Castellan. Climate change is exacerbating wildfires through higher temperatures coupled with a weakening jet stream that allow for longer dry spells, he said.