How can the European agriculture shift from climate culprit to saviour? Earth Scientist and PIK Director Johan Rockström discusses challenges of the current Common Agricultural Policy - short CAP - reform and its ability to live up to the objectives of the Green Deal with two guests who work at the very frontiers of the CAP: Frans Timmermans, Executive Vice President of the European Commission, and Alan Matthews, Professor Emeritus of European Agricultural Policy at Trinity College.