What are Canadian Wildfires? Why is New York skies orange?

Canada Braces for Worst Wildfire Season: Quick 5 Points on the current situation

Canada is experiencing its most devastating wildfire season to date, with approximately 3.3 million hectares already burned this year. The fires began in late April in British Columbia and Alberta, resulting in the displacement of over 30,000 people and causing the temporary shutdown of oil and gas production.

Quebec currently faces approximately 160 forest fires, leading to the displacement of around 10,000 people. Simultaneously, Ontario is also contending with a similar number of wildfires.
Heatwaves, low snowfall, deforestation, and human accidents fuel wildfires. Dry and hot weather increases lightning strikes, responsible for over 85% of Canada's wildfire destruction.

Over 20,000 people displaced in Canada as wildfires rage. Quebec's 150 active wildfires cause pollution reaching New York. Manhattan's iconic skyline is shrouded in a yellowish haze, disrupting flights and sports events
Air quality in Philadelphia remains dangerously high. The Air Quality Index which runs from 0 to 500, reached a hazardous level of 429, indicating high pollutant density, according to the local department of public health.