Devastating Wildfires in Nova Scotia Force Thousands to Flee, Smoke Drifts into U.S..

Wildfires raging in Nova Scotia, Canada have damaged or destroyed 200 structures and forced 16,000 people to evacuate.
The fires were fueled by hot, dry weather and suspected to be human-caused.
Smoke from the fires drifted into the northeastern U.S., potentially impacting air quality in major cities.
Canada has seen extreme wildfire risk this year, with 5 million acres burned so far surpassing recent years.
Although firefighters worked through the night, more hot and dry weather is expected to hamper containment efforts.