Climate planning for 2050 has become a core strand of debate in the European Union (EU). Most recently, focus has shifted to a potential revision of the EU’s long-term climate objectives within the context of a new 2050 strategy, which is to be submitted to the United Nations under the Paris Agreement by 2020. In parallel, all EU Member States must develop national strategies of their own, albeit with little central guidance and no overarching structure in place for collaboration. To provide support to these national processes, the Climate Recon 2050 project has created a platform for dialogue among experts from government and science. The goal of the platform is to identify common challenges and good practices to support effective national 2050 planning through mutual learning.