The aim of this project is to develop effective carbon market regulations at international, national and regional level. We investigate the occurrence of abuses in existing markets and identify the gaps in market oversight that have led to these abuses. We derive new rules and principles for effective carbon market regulation at all levels.Due to the complexity of the issue, we work interdisciplinary and combine different methods. In the first phase, we will develop a conceptual typology of markets. In the second phase, empirical evaluations of primary data, semantic analysis of documents and interviews will be carried out, and in the third phase, the results of the first two phases will be combined.