Never mind derailments: trains can be a serious source of pollution when just being trains, because: money, of course. We have coal trains rumbling through tow

Never mind derailments: trains can be a serious source of pollution when just being trains, because: money, of course. We have coal trains rumbling through town every day. They have nothing covering the coal. It's often windy. Result: the entire town is blanketed in a pall of black dust. It gets everywhere. Comes around the windows, even modern well sealed double glazing units. On patio furniture. In our lungs, one assumes too.