The financing of international climate efforts and the sustainable development goals (SDGs) is unreliable and insufficient. Joint international taxes and contributions promise to remedy this situation. The Global Solutions Initiative presents a paper in Berlin on 30 September 2024 in which Helge Sigurd Næss-Schmidt, Margit Schratzenstaller-Altzinger, Michael Thöne, Christian Kastrop and Rémy A. Weber develop six performance criteria for global SDG financing and apply them to selected proposals. Particularly suitable are rising carbon taxes for aviation, shipping and energy-intensive industries, as well as the use of gross national income as a direct tax base, already established in the EU as an own resource.