Climate finance from MDBs hit $162.5bn in 2025

Global climate banks commit record funding in 2025

Multilateral development banks delivered $162.5 billion in climate finance during 2025, according to a joint report from ten major institutions. This represents a 19% increase from the previous year and continues a pattern of substantial growth in global climate funding. The Council of Europe Development Bank confirmed the trend, reporting $163 billion for the same period.

For UK businesses, this matters because these funding flows shape international carbon markets, influence supply chain standards, and create new commercial opportunities in climate technology and services. Moreover, the priorities set by these banks often cascade into domestic policy and procurement requirements.

The figures show that climate finance is not slowing down. Instead, it is accelerating across both developed and developing economies. Understanding where this money flows helps businesses anticipate regulatory changes, identify market opportunities, and prepare for evolving sustainability expectations from investors and customers.

How the $162.5 billion breaks down

The total climate finance figure splits into distinct categories, each with different growth rates and strategic priorities. Low and middle-income economies received $103 billion, marking a 21% increase from 2024. This allocation reflects the growing recognition that developing nations face disproportionate climate risks while having fewer resources to respond.

Adaptation finance, which funds projects helping countries adjust to climate impacts like flooding or drought, reached $35 billion for lower-income economies. This represents a 31% increase from the previous year. Meanwhile, mitigation finance, supporting emissions reduction through renewable energy and efficiency projects, totalled $68 billion with a 16% rise.

The difference in growth rates is significant. Adaptation finance is expanding faster because vulnerable economies need immediate protection from climate impacts already underway. Mitigation finance continues growing steadily but from a larger base, reflecting ongoing investment in solar, wind, and clean technology infrastructure.

These funding priorities influence the type of projects that receive backing, the standards they must meet, and the commercial opportunities they create. For example, businesses offering climate adaptation solutions or emissions reduction technology may find increased demand as this capital flows into projects.

Five years of accelerating climate investment

The 2025 figure continues a clear upward trajectory. In 2024, multilateral development banks committed $137 billion, which was itself a 10% increase over the 2023 total of $125 billion. Going back to 2022, the benchmark was $100 billion. Therefore, climate finance has grown by more than 60% in just three years.

This acceleration exceeds the ambitious projections these banks made in 2019. Direct climate finance rose 25% in the past year alone, while mobilised private finance doubled. Consequently, the institutions are demonstrating they can scale up funding faster than many observers expected.

In 2023, the IDB Group and eight other multilateral development banks pledged to raise annual global climate investments to $175 billion by 2025. The achieved $162.5 billion falls slightly short of that target. Nevertheless, it represents substantial progress and nearly doubles the adaptation finance commitment for lower-income economies compared to earlier baselines.

For UK businesses tracking these trends, the message is clear. Climate finance is becoming a permanent and growing feature of the international economic landscape. This creates both competitive pressures and commercial opportunities, particularly for companies that can demonstrate credible emissions reductions or climate resilience.

What this means for UK companies and supply chains

These funding flows do not stay confined to international development projects. They influence standards, expectations, and requirements throughout global supply chains. As multilateral development banks invest in climate projects, they typically impose environmental and social standards on recipients. Those standards then ripple through procurement processes and supplier requirements.

UK businesses operating in international markets should pay attention for several reasons. First, companies bidding for contracts in developing economies may need to meet climate criteria aligned with multilateral development bank standards. Second, supply chain partners in those regions may face new sustainability requirements, potentially affecting costs, timelines, or specifications.

Furthermore, the emphasis on adaptation finance creates opportunities. UK firms offering flood defence technology, climate-resilient infrastructure, water management systems, or agricultural adaptation solutions may find new export markets. Similarly, businesses providing emissions measurement, carbon accounting, or clean energy technology could benefit from the continued growth in mitigation finance.

However, there are also risks to consider. As climate finance grows, expectations around transparency and reporting intensify. Businesses claiming to support climate objectives may face increased scrutiny regarding their actual impact. This makes robust measurement and verification increasingly important for maintaining credibility.

Additionally, the shift towards climate-positive investment affects where capital flows. Sectors or technologies seen as incompatible with climate goals may find funding harder to secure. Conversely, businesses demonstrating genuine progress on emissions reduction or climate adaptation may access more favourable financing terms.

Understanding the 2030 targets and their implications

Multilateral development banks have committed to reaching $120 billion annually for low and middle-income countries by 2030, with $42 billion specifically allocated for adaptation. They also aim to scale total climate finance to $185 billion by the same year. These targets matter because they signal continued growth in climate investment over the next five years.

Meeting these goals requires mobilising private sector capital alongside public funding. Banks cannot provide all this finance from their own resources. Therefore, they structure investments to attract commercial partners, creating opportunities for businesses and investors willing to participate in climate projects.

The targets also align with the Paris Agreement and the New Collective Quantified Goal on climate finance. As countries work towards these international commitments, they will implement policies that affect businesses directly. This includes carbon pricing, emissions reporting requirements, and sustainability criteria in public procurement.

UK businesses should consider how these trends might affect their operations. Companies without clear emissions reduction plans may face disadvantages when bidding for contracts or seeking investment. Meanwhile, those that can demonstrate genuine climate progress may find new opportunities as capital flows towards sustainable activities.

The significant rise in adaptation finance, growing 31% in a single year, indicates a strategic shift. Vulnerable economies need immediate protection from climate impacts, not just long-term emissions reduction. This creates demand for specific solutions: resilient infrastructure, early warning systems, water security, and agricultural adaptation. UK firms with relevant expertise could find substantial export opportunities.

Essential facts about 2025 climate finance

• Multilateral development banks committed $162.5 billion in climate finance during 2025, a 19% increase from 2024.
• Low and middle-income economies received $103 billion, representing 21% growth year-on-year.
• Adaptation finance for these economies reached $35 billion, marking a 31% increase and the fastest-growing category.
• Mitigation finance totalled $68 billion for lower-income countries, with 16% growth continuing steady expansion.
• The 2025 figure continues a five-year trend, with total climate finance growing from $100 billion in 2022 to $162.5 billion.
• Multilateral development banks aim to reach $120 billion annually for developing economies by 2030, with $185 billion total across all regions.

Preparing for continued climate finance growth

The trajectory is clear. Climate finance will continue growing through the end of this decade and beyond. For UK businesses, this creates both opportunities and obligations. Companies that anticipate these changes can position themselves advantageously, while those that ignore them risk falling behind.

Businesses should start by understanding their own emissions and climate risks. This includes direct emissions from operations, indirect emissions from energy use, and supply chain emissions. Robust measurement provides the foundation for credible reduction plans. Without accurate data, claims about climate performance lack substance.

Next, consider how climate finance trends might create commercial opportunities. Are there specific technologies, services, or solutions your business could provide to projects funded by these banks? Could you develop partnerships with organisations working in climate adaptation or mitigation? Are there export markets where UK expertise in sustainability could provide competitive advantages?

Additionally, think about risk management. As climate finance grows, so do expectations around environmental performance. Businesses without clear sustainability credentials may find themselves excluded from certain markets or facing higher costs. Conversely, companies with strong climate credentials may access better financing terms or win contracts where sustainability is a criterion.

Training and capacity building also matter. Understanding climate finance, carbon accounting, and sustainability reporting requires specific knowledge. Our SBS Academy training programs on emissions measurement and reporting help businesses develop these capabilities internally, rather than relying entirely on external consultants.

For businesses bidding on public sector contracts, climate criteria are becoming standard. Our net-zero program for carbon reporting compliance helps companies meet requirements like PPN 06/21, which mandates carbon reduction plans for many government suppliers. As climate finance grows, expect similar criteria to spread across more sectors and contract types.

Where to find authoritative climate finance information

The joint report from multilateral development banks provides detailed breakdowns of climate finance by region, sector, and type. You can access this through the European Bank for Reconstruction and Development publications page, which hosts the collaborative reporting from participating institutions.

For UK-specific climate policy and how it connects to international finance, the Department for Energy Security and Net Zero publishes regular updates on domestic targets and international commitments. This includes how UK climate finance contributions relate to broader multilateral efforts.

The United Nations Framework Convention on Climate Change maintains comprehensive resources on climate finance mechanisms, including explanations of how different funding streams work and how they connect to the Paris Agreement. This helps businesses understand the broader context within which multilateral development banks operate.

Finally, for businesses seeking to understand how climate finance affects their sector specifically, industry bodies and trade associations often provide targeted guidance. However, the fundamental data comes from these official sources, making them essential references for strategic planning and risk assessment.