B.C. forest fires cause of flaming-red Edmonton sun

Particles clouding the atmosphere are the cause of a red-glowing sun hanging over the Edmonton sky on Wednesday morning.
“I’m suspecting that it’s due to the forest fire smoke in the atmosphere from Kelowna,” said Frank Florian, director of planetarium and space sciences at the Telus World of Science. “The clouds and humidity, along with the matter from forest fire smoke, scatters the light in the atmosphere.”
In this situation, short-wavelength colours like t