This report discusses possible ways to enhance the Parties’ contributions to climate mitigation and finance, and draws lessons for the international negotiations leading up to the Paris climate agreement. Particular emphasis is placed on the importance of the dynamic nature of the climate regime, looking not only at the Paris climate agreement but also at the follow-up of the agreement (so-called “beyond”). This is critical to make the "nationally determined contribution" approach sufficiently effective to achieve the 2°C target. The report also covers the issues of market-based mechanisms and loss and damage as important components of a post-2020 climate regime.