Policy Brief: Keeping Climate Commitments under Parliamentary Control: Strengthening national parliaments for climate governance in the European Union

National parliamentary debate on climate change has expanded dramatically from under 2% of statements in the early 2000s to over 10% by 2020. However, the tone, analytical depth, and institutional oversight capacity remain highly fragmented across Europe. To bridge this gap, parliaments are turning to democratic innovations across four distinct pillars: commitment mechanisms like framework laws and sectoral targets, extended oversight mechanisms, independent expert information channels, and direct citizen participatory pathways. Despite these innovations, structural implementation across EU member states remains deeply uneven. While eleven member states possess comprehensive climate framework laws, only five enforce sector-differentiated targets. Seven rely on total emission budgets, five integrate green-budgeting provisions into their core architecture, and eighteen maintain advisory bodies with widely diverging mandates and financial resources. Strengthening national climate governance requires a comprehensive approach across seven core priorities: connecting parliamentary climate innovations into a cohesive portfolio, converting long-term targets into traceable milestones, embedding climate scrutiny into routine legislative cycles, securing independent analytical expertise, establishing clear pathways for public input, aligning accountability directly with administrative authority, and leveraging inter-parliamentary networks for cross-border peer learning. Ultimately, these democratic innovations will only strengthen climate governance if they transition from extraordinary measures into the everyday, cross-party routine of parliamentary work.