Greenwire (subscription required) reported yesterday that more than 150 wildfires in Quebec have blanketed large swaths of the United States with unhealthy levels of particulate matter. Indeed, as of 9:00 AM on Thursday, June 8, New York City has the worst air quality of any metropolitan area in the world. Some businesses are advising workers to stay home. 
Scientists are generally in agreement that climate change has increased the frequency and intensity of wildfires. … More