A transboundary environmental zone in Alsace?

This weekend, the Eurodistrict Strasbourg-Ortenau and the SPPPI Strasbourg-Kehl discussed the air pollution control plan of the transnational region. Here, the environmental zones on both sides of the Rhine were an issue. Within the discussions also raised the question of a cross-border environmental zone. However, a harmonisation of environmental badges is still a long way off.