Green Weimar Triangle meeting in Chambord, 28-29th September

On 28-29 September 2026, the Environment Ministers of Poland, Germany and France met at the Château de Chambord as part of the Green Weimar Triangle, a framework for strengthening trilateral cooperation on climate and environmental issues. Building on the meeting held in Gniezno in March 2026, the three Ministers reaffirmed the importance of closer cooperation between the three countries ahead of major European and international milestones, including the upcoming biodiversity and climate COPs and the EU Environment Councils in October and December.