First International Vienna Energy and Climate Forum, 2-3 November 2023. 10 July 2023 Registration now open . The newly established International Vienna Energy and Climate Forum will take place for the first time on 2 and 3 November 2023at the Hofburg Palace in Vienna. It will bring together high-level representatives from member states, international organizations, business and science, including youth representatives as well as more than 1,000 international ...