Christine Lagarde, the IMF’s Managing Director will be joined by Ngozi Okonjo-Iweala, former Minister of Finance of Nigeria and Andrew Steer, President and CEO of WRI, in a session moderated by CGD President, Masood Ahmed to discuss fiscal policy options to achieve the Paris commitments: How much carbon pricing do countries need to meet their commitments? Should an international carbon price floor be established? Or are other solutions like tax subsidies more politically palatable? Where should the revenues be spent? Are physical climate proofing investments enough for adaptation?