Abstract : Since the very first European research project initiated in 1993, much progress has been made in Europe on the development of
CO2 geological storage as a key tool for combating climate change. A review of the main achievements and remaining obstacles
in Europe is proposed, with a glance at what is going on at global level. Scientific, technical, economic, regulatory and policy
aspects are considered. The increasing role of the growing CO2GeoNet Association, a reference pan-European scientific body on
CO2 geological storage, is emphasized, with actions both on the EU and global scene for enabling efficient and safe storage.