Ursula Heinen-Esser, Minister for the Environment, Agriculture, Nature Conservation and Consumer Protection of the State of North Rhine-Westphalia, Prof. Dr. Dr. h. c. Christoph M. Schmidt, President of RWI - Leibnitz Institute for Economic Research and Chairman of the German Council of Economic Experts until 2020, Prof. Dr. Julia Frohne, Chairwoman of the Management Board of Business Metropole Ruhr GmbH