The Climate Actions and Policies Measurement Framework: A Database to Monitor and Assess Countries’ Mitigation Action

There are major gaps in the measurement of the adoption and stringency of countries’ climate actions and policies, notably in a manner coherent across countries, time, sectors, and instrument types. The Climate Actions and Policies Measurement Framework (CAPMF) aims to fill this gap. It is the most extensive structured and internationally harmonised climate mitigation policy database available to date. Currently, it comprises 130 policy variables, grouped into 56 policy instruments and other climate actions, covering 50 countries and the EU-27 as a block for the period 1990–2022. Results indicate that countries strengthened their climate action between 1990 and 2022 in terms of policy adoption and policy stringency, although at different paces. Policy adoption, policy stringency and policy mixes changed over time and differ substantially across countries and country groups. Importantly, regression analysis suggests a significant relationship between stronger climate action and greater emission reductions. Mitigation policies helped reduce emissions by about 12