Political Science > Environmental Policy

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Jean Chateau, Ms. Wenjie Chen, Ms. Florence Jaumotte, and Karlygash Zhunussova
This paper presents ways for China to achieve its climate goals while also attain high-quality growth—growth that is balanced, inclusive, and green. Using a dynamic computable general equilibrium model that is calibrated to China, multiple scenarios are considered that incorporate a sequence of layered policies: (i) frontloading mitigation with an earlier emissions peak, (ii) power market reforms, and (iii) economic rebalancing. The results highlight that these policies can significantly contribute to the success of the climate strategy overall, including by lowering the shadow price of carbon as well as the associated mitigation costs. Distribution analysis offers proposals to lessen the impact on vulnerable households.
Jean Chateau, Ms. Florence Jaumotte, and Gregor Schwerhoff
This paper discusses and analyzes various international mechanisms to scale up global action on climate mitigation and address the policy gap in this area. Despite the new commitments made at COP 26, there is still an ambition and a policy gap at the global level to keep temperature increases below the 2°C agreed in Paris. Avoiding the worst outcomes of climate change requires an urgent scaling up of climate policies. Recent policy proposals include the idea of common minimum carbon prices, which underlie the IMF’s international carbon price proposal (Parry, Black, and Roaf 2021) and the climate club proposal of the German government. While global carbon prices are not a new idea, the new elements are the use of carbon price floors—which allow countries to do more if they wish—and the differentiation of carbon price floors by level of development. In the absence of international coordination, countries with ambitious climate policies are considering introducing a border carbon adjustment mechanism to prevent domestic producers from being at a competitive disadvantage due to more ambitious domestic climate policies. An interesting question from the global perspective is whether border carbon adjustment would deliver substantial additional emissions reductions or incentivize other countries to join a carbon price floor agreement.