Carbon leakage risks undermining the economic gains associated with the net zero transition. By effectively offshoring our emissions, carbon leakage has significant economic and environmental consequences, and could ultimately risk the competitiveness of our manufacturing industries. In this new paper, John and other members of The Commission for Carbon Competitiveness recommend the Government introduce a UK Carbon Border Adjustment Mechanism as an efficient way of reaching our net zero targets whilst ensuring the UK manufacturing industries can compete on a level playing field.