Outlooks 2026: Global Sustainable Finance

Executive Summary

Global Sustainable Finance Outlook 2026 – Transition shifts, extreme weather and AI boom drive credit risks

In 2026, energy security and affordability considerations will drive sustainability strategies, while the costs of physical climate risks and insurability concerns become more acute. The impact of AI on power demand, labor markets and data governance will also be more apparent amid rising social risks. In this report, we look at the key trends in sustainable finance that will shape credit strength in 2026 and beyond.

Key takeaways:

• Energy security concerns drive pragmatic approach to transition. Cost competitiveness will support spending on low-carbon energy alongside incremental fossil-fuel investment, amid rising power demand. Geopolitical tensions and stalling multilateralism will also put the spotlight on resource efficiency and supply-chain resilience. Businesses will contend with ongoing policy fragmentation and volatility.
• Adaptation and resilience increasingly central to credit quality. As extreme weather events become more frequent and severe, investment in adaptation and resilience will be key to mitigate risk and support credit strength. Public-sector focus on managing and containing risk, including supporting insurability in high-risk markets, will intensify. Businesses will increasingly disclose adaptation strategies and investment to stakeholders, including regulators and lenders.
• Focus on natural-resource management sharpens as risks bubble up. The interlinkages between carbon transition, physical climate and other environmental risks will drive policy and market focus on natural-resource management. Risks around resource availability and supply-chain disruptions put the spotlight on issues such as deforestation practices in agriculture and water consumption by data centers.
• Budgetary pressures, and climate and digital disruption exacerbate social disparities. The rising cost of basic services, including electricity, will continue to fuel voter dissatisfaction with mainstream political parties in advanced economies (AEs). Meanwhile, climate shocks are compounding concerns around food security in emerging markets (EMs). Amid rapid AI adoption, personal-data protection, data sovereignty and governance are emerging as key policy topics, with fragmented regulation increasing compliance costs for businesses.
• Financing capacity and risk management will shape credit pressures. Growing private credit markets and mechanisms such as blended finance and blue bonds present opportunities for capital mobilization and could narrow investment gaps.

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Executive Summary

Global Sustainable Bonds Outlook 2026 – Transition, adaptation and digital needs will drive sustainable debt

We forecast global sustainable bond issuance to stand at $900 billion in 2026, broadly flat from 2025. Addressing climate mitigation and adaptation gaps will support investment, even as political headwinds and competing priorities curb volumes in some regions. Environmentally focused projects will continue to dominate, as new investments in transition, adaptation and digital infrastructure complement activity from a deep pool of repeat issuers. Links with environmental risks will keep social considerations in the spotlight, even as dedicated social proceeds remain limited.

Key takeaways:

• Global sustainable bond issuance will be steady in 2026. Our forecast comprises $530 billion of green bonds, $115 billion of social bonds, $190 billion of sustainability bonds, $40 billion of transition bonds and $25 billion of sustainability-linked bonds (SLBs). Varying investment needs, as well as regulatory and political support, will drive regional divergence. An outsized share of maturing sustainable instruments provides both potential for greater supply and a test of issuer appetite for labeling.
• Transition finance will blossom as market gradually adopts new standards. Climate mitigation financing will dominate in 2026, despite a more pragmatic approach to carbon transition . While green bonds will feature the largest share of decarbonization projects, new guidelines will support global scaling in labeled transition bonds and loans following concentration in Asia in recent years. However, disparate investor expectations may contribute to gradual and uneven adoption of the label.
• Adaptation and resilience to emerge as focal point beyond mitigation. The growing frequency and intensity of severe weather events is incentivizing issuers to incorporate adaptation and resilience into their financing plans. Although bankability hurdles remain, governments in particular will increasingly feature such projects in their sustainable bond programs in 2026. Nature and biodiversity will also scale further as issuers leverage the blue-bond label to address relevant risks.
• Digital infrastructure growth will support new opportunities in sustainable debt. The massive investment needed to expand digital infrastructure globally is creating significant financing opportunities. We expect more labeled bond frameworks and instruments will include data-center projects in 2026, with issuers increasingly focused on responding to investor scrutiny of the projects' energy- and water-intensive nature.