Roland Tichy’s site here reports that although car traffic in the German city of Stuttgart has decreased significantly due to COVID-19, the drop in NO2 content has only been “slight”. So it cannot be the evil diesel engine cars that are “choking” our cities. Image: NASA here (public domain) “The Corona crisis is bringing it…

über Corona Exposes Inconvenient Truth: Pollution From Diesel Cars Grossly Over-hyped By German Activists — NoTricksZone