As governments gather for the 31st Conference of the Parties (COP31) in Antalya, attention is shifting from setting new climate commitments towards implementing existing ones. This brings the negotiating agenda closer to Finance Ministries’ core responsibilities. Decisions taken at the COP and at the meeting of the Parties to the Paris Agreement (CMA) are adopted by consensus and are not always legally binding. Even so, they shape international expectations and influence how national climate plans are costed and financed. They also affect the decisions of investors and donors and touch public expenditure, revenues, debt, investment, and fiscal risk.
At the same time, governments must pursue climate objectives amid constrained fiscal space and competing development priorities. Finance Ministries bring the perspective of affordability and trade-offs, which helps keep climate commitments fiscally realistic and aligned with broader economic and development goals. The Coalition of Finance Ministers for Climate Action approaches COP31 from this perspective. The Coalition does not take positions in formal negotiations. Instead, it provides a platform for Finance Ministries to exchange experience and examine how fiscal, economic and financial policies can support implementation and climate action.
Climate finance negotiations and what they mean for budgets and debt sustainability
Climate finance is the most direct link between COP and Finance Ministries. The New Collective Quantified Goal (NCQG), agreed at COP29, includes mobilizing at least USD 300 billion annually for developing countries by 2035, alongside a broader call to scale climate finance to at least USD 1.3 trillion. COP31 will focus on operationalizing it. For Finance Ministries in both contributor and recipient countries, this raises practical questions: which instruments count and on what terms, how contributions are measured and reported, how much finance countries can access and absorb, and what the effects are on budgets and debt sustainability. Decisions on the governance, replenishment and eligibility of climate funds also matter. Contributors decide on contributions and board participation, while recipients must integrate external financing into the budget and manage grants and loans. Multilateral Development Banks (MDBs) and instruments such as guarantees, blended finance and local-currency financing can help use scarce concessional resources to mobilize additional investment.
From NDCs and carbon markets to fiscal policy
Other COP topics also reach Finance Ministry mandates. Nationally Determined Contributions (NDCs) need to be costed and financed, which requires macro-fiscal inputs and alignment with budget cycles, medium-term fiscal frameworks and public investment management. Carbon markets under Article 6 raise questions on the tax and accounting treatment of carbon credits, the fiscal treatment of fees and revenues, and exposure from public guarantees. They also affect how countries meet their own NDCs targets. Discussions on carbon pricing, taxes and levies bear on revenue mobilization, competitiveness and distributional outcomes. Debates on aligning financial flows with low-emission, resilient development (Article 2.1(c)) intersect with sustainable finance frameworks and private capital mobilization. The Finance Ministry’s role in these debates depends on how responsibilities are divided with central banks and financial regulators.
Adaptation, loss and damage, and fiscal risk
Adaptation is another area where negotiations meet fiscal policy. COP31 is expected to give further guidance on following through on the commitment to triple adaptation finance. Developing countries’ adaptation needs are estimated at USD 310-365 billion annually, against roughly USD 32 billion in international public adaptation finance in 2024. For Finance Ministries, this connects to the costing and financing of National Adaptation Plans, climate-resilient infrastructure, disaster risk financing, and the budgetary impact of extreme weather. Incorporating climate risks into fiscal and investment decisions can strengthen economic resilience and help governments weigh immediate spending pressures against longer-term investment.
Different ways to engage in the process
There is no single model for how Finance Ministries take part in negotiations. In Indonesia, the Finance Ministry holds the negotiating seat on climate finance. In Germany, it supports on-site delegation and helps shape the European Union (EU) position. In the United Kingdom, HM Treasury shapes cross-government positions and assesses fiscal implications while the climate ministry leads the negotiation. Whatever the model, early and structured coordination with negotiators and with environment and sector ministries allows Finance Ministries to inform national positions. COP31 also offers opportunities beyond the negotiating room. Side events, pavilions and high-level dialogues allow Finance Ministries to learn from peers, build partnerships with MDBs and other institutions, and discuss how agreed goals can be delivered.
Ultimately, COP decisions matter most for Finance Ministries when they are translated into credible budgets, financing strategies and investment plans. This is where the Coalition can add a particular contribution at COP31: helping Finance Ministries connect international climate discussions with the practical work of economic policymaking at home. Through dialogue, analytical work, practical tools, and peer exchange, the Coalition will bring Finance Ministries together in Antalya to share country experience on how COP topics translate into fiscal, economic, and financial policy, and to strengthen their role where climate, economic, and development objectives meet.
Practical Introduction to the COP process for MoF: COP 101 Note