> I don't know if the US has air quality norms? If so it could force strong measures that impact the economy. They have rather strong ones, a lot of people are

> I don't know if the US has air quality norms? If so it could force strong measures that impact the economy. They have rather strong ones, a lot of people are completely ignorant of how this stuff works. The U.S. tracks air quality across the country with a rather high resolution[0][1]; here in Canada we don't seem to have anywhere near the quality of reporting[2], and the air quality seems similar. [0]: https://gispub.epa.gov/airnow/ https://gispub.epa.gov/airnow/ [1]: https://epa.maps.arcgis.com/apps/webappviewer/index.html?id=5f239fd3e72f424f98ef3d5def547eb5 https://epa.maps.arcgis.com/apps/webappviewer/index.html?id=... [2]: https://weather.gc.ca/airquality/pages/index_e.html https://weather.gc.ca/airquality/pages/index_e.html