Multilateral development banks elevate climate finance to record levels

MDB climate finance reaches $163 billion in 2025

Multilateral development banks delivered $163 billion in climate finance during 2025. This represents a 19% increase from the previous year. For low and middle income countries specifically, the total reached $103 billion. That figure rose 21% compared to 2024.

The results exceed the collective targets these institutions set back in 2019. More importantly, they put MDBs on course to meet the projections announced at the COP29 climate summit in Baku. The 2025 Joint Summary Report confirms that MDBs committed $102.585 billion to low and middle income economies. High income economies received $59.934 billion in the same period.

For context, total climate finance from these banks stood at approximately $137 billion in 2024. The year before that, the figure was $125 billion. The growth trajectory shows consistent acceleration rather than incremental progress.

Where the money went and how fast it grew

Several factors drove the substantial increase. Direct climate finance mobilisation doubled over the past year. Meanwhile, direct climate finance itself rose 25% compared to earlier projections. The inclusion of the New Development Bank in this year’s reporting also contributed to the higher totals.

Low and middle income countries saw the most pronounced growth. Their $103 billion share represents 21% growth year on year. This outpaced the overall global increase of 19%. Consequently, the proportion of climate finance reaching developing economies improved rather than simply maintaining previous levels.

The geographic distribution matters for UK businesses operating in emerging markets. Supply chains increasingly depend on climate resilient infrastructure in these regions. Furthermore, procurement frameworks now require suppliers to demonstrate sustainability across their international operations. Companies with exposure to developing markets need to track where this capital flows and what projects it supports.

Progress against the 2030 benchmarks set at COP29

At COP29 in November 2024, MDBs pledged to reach $120 billion annually for low and middle income countries by 2030. They also committed to mobilise $65 billion from private sector sources. The 2025 figure of $103 billion already represents 86% of that 2030 target.

This timeline matters. Achieving 86% of a five year target in the first year indicates either conservative initial projections or genuinely rapid scaling. Either way, it suggests the 2030 goal will likely be exceeded. For businesses planning long term investments in climate transition, this provides some confidence that public finance will continue expanding rather than plateauing.

The broader 2030 target for all countries aligns with a trajectory toward $185 billion in combined adaptation and mitigation finance. However, that figure still falls short of the estimated $1 trillion to $1.3 trillion annual investment need for emerging markets identified by various analyses. The gap remains substantial despite the recent acceleration.

UK businesses should note that COP29 also established a separate commitment. Developed nations agreed to mobilise at least $300 billion annually by 2035 for developing countries. This target now includes all MDB disbursements. Therefore, the $163 billion reported for 2025 counts toward that broader obligation. The timeline extends to 2035, which matters for companies making decade long infrastructure or supply chain commitments.

What this means for UK business planning

The scaling of MDB climate finance affects several commercial realities. First, it confirms that public capital for climate projects in developing markets will continue growing. This has implications for UK exporters, particularly those in renewable energy, water infrastructure, and sustainable agriculture sectors. Projects that previously struggled to secure financing may now become viable.

Second, the geographic concentration of this finance creates market opportunities. Countries receiving substantial MDB support often implement policy reforms as conditions for funding. These reforms typically include regulatory changes that affect procurement, environmental standards, and reporting requirements. UK companies tendering for projects in these markets need to understand these evolving compliance landscapes.

Third, the increase in adaptation finance specifically matters for risk management. Businesses with assets or supply chains in climate vulnerable regions face mounting physical risks. MDB funded adaptation projects can reduce some of these risks. However, companies cannot rely solely on public finance to protect their operations. Due diligence now requires assessing which risks MDB projects might mitigate and which remain unaddressed.

The private sector mobilisation target of $65 billion by 2030 also has practical implications. MDBs increasingly structure deals to crowd in commercial capital. This creates co investment opportunities but also introduces new due diligence requirements. UK businesses considering such arrangements need to evaluate both the commercial terms and the climate impact measurement frameworks that MDBs impose.

For companies subject to carbon reporting requirements, the expansion of MDB financed projects affects Scope 3 calculations. Investments in regions benefiting from climate finance may yield different emissions profiles than comparable projects elsewhere. This matters for businesses trying to demonstrate credible transition plans to investors, regulators, and procurement teams.

Eight facts about the 2025 climate finance figures

• Total MDB climate finance reached $163 billion in 2025, up 19% from approximately $137 billion in 2024.
• Low and middle income countries received $103 billion, representing a 21% increase from around $85 billion the previous year.
• The 2025 total already achieves 86% of the $120 billion target MDBs set for low and middle income countries by 2030.
• High income economies received $59.934 billion in MDB climate finance during 2025.
• Direct climate finance mobilisation doubled over the past year according to the Joint Summary Report.
• The New Development Bank joined the reporting framework for the first time in 2025, contributing to the higher totals.
• MDBs exceeded the collective 2025 targets they established in 2019 for climate finance deployment.
• The results align with projections announced at COP29 in Baku for reaching $185 billion across all countries by 2030.

Commercial considerations for the next five years

The trajectory suggests MDB climate finance will continue expanding through 2030. However, businesses should not assume this growth will be linear or evenly distributed. Political changes, currency fluctuations, and competing development priorities could affect disbursement patterns. Moreover, the gap between current levels and the estimated trillion dollar annual need remains vast.

For UK SMEs, the most immediate consideration involves supply chain resilience. As MDB finance flows into climate adaptation projects in developing countries, some suppliers will gain access to improved infrastructure. Others may face new compliance requirements without corresponding support. Understanding which category applies to your supply chain partners requires active monitoring rather than assumptions based on previous patterns.

The inclusion of all MDB disbursements in the $300 billion developed country commitment creates accounting complexity. Businesses cannot simply add MDB finance to other public climate finance figures without risk of double counting. This matters for companies trying to assess the total public finance available for climate projects in specific markets or sectors.

Procurement teams should also note that MDB funded projects typically include environmental and social safeguards. These requirements flow down to contractors and suppliers. UK businesses bidding for work on such projects need to demonstrate compliance with standards that may exceed domestic requirements. ESG compliance support becomes particularly relevant when navigating these international frameworks.

The emphasis on private sector mobilisation creates opportunities but also introduces conditionality. MDBs structure blended finance arrangements to reduce commercial risk, but they also impose impact measurement and reporting obligations. Businesses considering such arrangements should evaluate whether the administrative burden justifies the risk reduction. Carbon reporting capabilities become essential for companies pursuing these opportunities.

Finally, the acceleration of climate finance affects competitive positioning. Companies that develop expertise in MDB procurement processes and compliance frameworks gain advantages in markets where this finance concentrates. Conversely, businesses that ignore these developments may find themselves excluded from growing segments of international trade.

Where to find detailed information and data

The World Bank publishes annual climate finance reports that include detailed breakdowns by sector, region, and financial instrument. These reports provide the most authoritative data on MDB disbursements and can help businesses identify where finance concentrates geographically and thematically.

The United Nations Framework Convention on Climate Change maintains comprehensive records of COP decisions, including the finance commitments made at COP29. This source clarifies how MDB finance relates to broader developed country obligations and the $300 billion annual target for 2035.

For businesses evaluating specific market opportunities, the Asian Development Bank, African Development Bank, and regional development banks publish project pipelines and financing plans. These documents reveal where climate finance will flow in coming years and what types of projects will receive priority.

The Department for Energy Security and Net Zero tracks UK contributions to multilateral climate finance and how these align with domestic net zero commitments. This matters for businesses trying to understand how UK policy interacts with international climate finance architecture.