How much could Article 6 enhance Nationally Determined Contribution ambition toward Paris Agreement goals through economic efficiency School Authors: James 'Jae' Edmonds, Sha Yu, Haewon McJeon, Nathan Hultman, Yiyun 'Ryna' Cui, Leon Clarke Other Authors: Dirk Forrister, Joseph Aldy, Stephanie Waldhoff, Stefano De Clara, Clayton Munnings