Meeting the Paris Agreement’s climate targets necessitates better knowledge about which climate policies work in reducing emissions at the necessary scale. We provide a global, systematic ex post evaluation to identify policy combinations that have led to large emission reductions out of 1500 climate policies implemented between 1998 and 2022 across 41 countries from six continents. Our approach integrates a comprehensive climate policy database with a machine learning–based extension of the common difference-in-differences approach. We identified 63 successful policy interventions with total emission reductions between 0.6 billion and 1.8 billion metric tonnes CO2. Our insights on effective but rarely studied policy combinations highlight the important role of price-based instruments in well-designed policy mixes and the policy efforts necessary for closing the emissions gap.
About the Speaker
Ebba Mark is a DPhil Student with Climate Econometrics and the Calleva Project at Magdalen College. She is focused on applying econometric methods to the study of what constitutes a 'Just Transition.' Passionate about evidence-based policymaking and ensuring that urgent environmental action is compatible with ongoing fights for greater equality, her research interest is in advancing empirical work to inform the scale and type of Just Transition policies necessary as societies move towards fulfilling net-zero objectives.
Previously, Ebba worked as Junior Policy Advisor to the OECD Chief of Staff and G20/G7 Sherpa in Paris as part of the Organisation’s Young Associate Programme. In this role, she supported the Chief of Staff in advancing her strategic agenda, including the coordination of the organisation’s gender equality, social policy, and inclusive growth work.
Ebba holds an MSc in Environmental Change and Management from the University of Oxford and a BA in Economics from Harvard University.