Mapping air quality from Canada’s wildfire smoke

Smoke from the Canadian wildfires continues to pollute the air across the United States, mainly affecting cities in the northeast, including Pittsburgh, Chicago, Cleveland, Detroit and Buffalo. According to the New York Times, in early June, the level of particulate…
Street by street: How we’re mapping air quality in Europe

Since 2015, dozens of Street View cars outfitted with pollution sensors have been cruising the roads to track air quality in cities all over the world — from Oakland to Sydney. Over the past six years, these cars have collected…