Intergenerational Justice as a Lever to Impact Climate Policies: Lessons from the Complainants’ Perspective on Germany’s 2021 Climate Constitutional Ruling

Climate litigation based on the constitutional rights of future generations is an emerging and promising approach to enforcing long-term policies based on intergenerational and climate justice. In Germany, a high-profile constitutional judgment triggered by climate activists ruled that the German climate policy infringes future freedom rights. Based on an assessment of legal opportunity structures and interviews with key actors, this research finds that the complainants utilised the opportunity to facilitate a strong public perception of intergenerational injustice set by the Fridays for Future movement. While the court’s response in the form of the intertemporal effect doctrine is ambiguous and does not constitute clear fundamental rights of future generations, the complainants reached their strategic goal to directly influence policymakers and draw public attention to the issue of climate protection as an intergenerational responsibility. An interplay of four different legal arguments and numerous actors associated with the climate movement was crucial to triggering this outcome. These findings from a sociolegal bottom-up perspective are of great relevance as they show that impactful climate litigation through intergenerational principles relies on the strategic utilisation of the cultural context beyond the legal sphere.