woke up to find their cities engulfed in smoke,which as the day progressed turned into a hazy, deep orange sky— a result of the smoke traveling south from ongoing wildfires in Nova Scotia, Canada. With the Manhattan skyline and its landmarks eerily disappearing into the yellow fog, the New York State Department of Environmental Conservation issued an air quality health advisory through Thursday, citing "unhealthy" quality levels, which have now been deemed the worst of any city in the world, according to according to IQAir, a Swiss monitoring service.