Bonn, Cologne ordered to ban diesel older vehicles

Skyline of Cologne
A German court has ruled that the western cities of Cologne and Bonn must ban old polluting diesel vehicles from the roads in order to improve air quality.
The ban must be introduced by April 2019.
The Cologne Administrative Court ruling is the latest to remove diesel vehicles off the roads to reduce nitrogen dioxide levels.
Deutsche Umwelthilfe (DUH), an environmental organization, has filed nearly 30 cases against cities to force them to take polluting vehicles off the roads.
Stuttgart, Aachen, Frankfurt, Mainz and Berlin also have court ordered diesel vehicle bans. Hamburg has a limited diesel vehicle ban.