Diesel summit with affected cities at the federal chancellery

German Chancellor Angela Merkel (l) and Horst Seehofer, Prime Minister of Bavaria (CSU), speak before the start of a meeting with the representatives of the federal government, the state governments and the municipalities with high nitrogen oxide emissions by Diesel cars at the federal chancellery in Berlin, Germany, 4 September 2017. Main topic of the meeting are local measures to reduce air pollution by Diesel cars in order to prevent driving prohibitions enforced by the court. Examples of these measures are the usage of buses with alternative propulsions and a better local public transport. Photo: Bernd von Jutrczenka/dpa (Photo by Bernd von Jutrczenka/picture alliance via Getty Images)