After the Sibiu meeting, the core question pertaining to the future of Europe will not go away: how to maintain and develop a strong EU that is capable of helping member states address problems that they cannot solve alone? This question will stick with us, and will keep the new Parliament and Commission busy in the months and years ahead. Climate policies can help find the right answers to this question. Maintaining a strong EU and implementing effective climate policies go hand in hand with one another. Indeed, they are pretty much the best of friends. A stable, prosperous and climate-resilient Europe requires effective climate action; and effective climate action needs a strong EU. When addressed from this angle, there is a lot of agreement among EU policymakers, who often speak about the importance of climate action when addressing the future of the EU. However, there is more to it than general agreement. Climate policies and the future of the EU can reinforce each other in concrete ways.