What’s to blame for Canada’s wildfires?
We can expect future smoky days. And — surprise — it makes no sense to fight every blaze
Canadian wildfires in northern Ontario sent thick plumes of smoke thousands of kilometers to the east and south, blanketing many U.S. cities in hazardous haze. Here, a NASA visualization tracks the smoke from July 14 through July 20. Darker smoke colors indicate increasing smoke intensity, corresponding to worse air quality. Bright red regions indicate active fires.
NASA Scientific Visualization Studio