Trump’s EPA balks at a chance to save black lives
Decades of research paint a clear picture: The No. 1 environmental health risk in the US is soot. Also known as particulate pollution, it is made up of extremely small particles spewed into the air by power generation, industrial processes, and cars and trucks. There are “coarse particles,” between 2.5 and 10 micrometers in diameter, and “fine particles,” at 2.5 micrometers and smaller. By way of comparison, the average human hair has a diameter of…