Proponents of hydrogen and fuel cell solutions had something to look forward to at COP23, the 23rd UN climate conference, which took place in Bonn, Germany, Nov. 6 through 17 last year. Until the beginning of December, the Deutsches Museum featured a special exhibition on “Hydrogen – The unlimited energy source,” supported by the Hydrogeit Verlag publishing house. Additionally, some of the buses transporting attendees around the grounds during the summit were CleanShuttle battery, hydrogen and hybrid versions from all over Germany. The event also offered opportunities to ride in fuel cell vehicles to a hydrogen refueling station for a closer look at the installation. The high point of the conference, however, was the Global Renewable Energy Solutions Showcase trade show for COP23 delegates, international organizations and NGOs in the Bundeskunsthalle, Nov. 7 through 8.