These costs, which are often known as the ‘costs of inaction’, provide key inputs to the policy debate on climate risks, mitigation and adaptation. The objective of the COACCH project (COdesigning the Assessment of Climate CHange costs) is to produce an improved downscaled assessment of the risks and costs of climate change in Europe. The project is proactively involving stakeholders in co-design, coproduction and co-dissemination, to produce research that is of direct use to end users from the research, business, investment and policy making communities. This document synthesises the latest results from the COACCH project on the economic costs of climate change in Europe and identifies areas of possible discussion to explore with stakeholders at the second COACCH workshop.