The European Commission’s initiative Covenant of Mayors (CoM), one of the world’s largest urban climate and energy initiatives, involving more than seven thousand local and regional authorities, proves that climate change has moved to the forefront of urban priorities. Its integrated approach is in line with a number of EU priorities not only concerning mitigation and adaptation but also in terms of embracing a robust transparency framework for the implementation of the Paris agreement. The Covenant of Mayors in figures 8-year assessment report, based on the data collected in the CoM platform... as of September 2016, aims at providing an overall picture of the achievement and projections made by the signatories in terms of greenhouse gas emissions and the related energy consumptions. Developing a sustainable energy and climate action plan that requires the establishment of a baseline emission inventory, target setting and the adoption of policy measures is already a tangible achievement for cities. This is the first step towards an effective, transparent system for tracking progress and concrete results. Ultimately, the report emphasis that strong urban energy policies and increased involvement of citizens is of vital importance in the potential of urban mitigation of global climate change.