This paper looks at the role of subnational governments in influencing global climate ambition, and makes recommendations for how these actors can increase their influence in the future.

Given the challenging political contexts since 2015, the corporate sector will have a key role to play in persuading national governments how technologies and expertise have moved on since the pledges were made. Editor's note: This is one of four background papers feeding into a synthesis paper entitled The role of sub-state and non-state actors...