In recent years, there have been several Constitutional Court decisions dealing with the right to a healthy environment and its interpretation. In these decisions, the Constitutional Court has further developed and partially renewed the content of the right to a healthy environment and its interpretation, which was necessary and justified following the adoption of the Fundamental Law of Hungary, and especially following its fourth amendment. Accordingly, the present study reviews the recent changes in the content and interpretation of the right to a healthy environment and the new tendencies that can be observed in this context by analysing the practice of the Constitutional Court of Hungary.