As the UK experienced record-breaking temperatures in June 2026, the Society of Pension Professionals (SPP) has warned that climate change is rapidly becoming a defining factor in pension outcomes, scheme funding and long-term retirement security. In a new thought leadership paper, Pensions in a Warming World, the professional body argues that trustees and policymakers can no longer treat climate change as a purely environmental concern, but as a core economic, financial and governance challenge for the pensions system.
The report underlines that UK pension schemes, responsible for managing trillions of pounds on behalf of current and future retirees, are deeply exposed to how the climate transition unfolds over the coming decades. With pension promises stretching far into the future, the SPP stresses that schemes “cannot diversify away” from a warming planet: every asset class, sector and geography will be affected to some degree by physical climate impacts, policy responses and technological change.
SPP’s analysis explores a range of possible climate pathways, from early, co‑ordinated global action to more delayed or disorderly transitions, and scenarios where physical impacts escalate more sharply. It highlights how each pathway could translate into very different financial outcomes for Defined Benefit (DB), Defined Contribution (DC), Collective Defined Contribution (CDC) and public sector schemes, influencing investment returns, funding levels and the adequacy of members’ eventual retirement incomes.
Central to the paper is the conclusion that climate change represents a financially material risk. The SPP notes that delayed action on climate may leave schemes and their sponsoring employers more exposed to market volatility, abrupt policy shifts and wider economic disruption as markets reprice assets and governments accelerate regulation. At the same time, growing physical impacts – from more frequent extreme weather to rising sea levels – are already reshaping insurance markets, infrastructure resilience, property valuations and economic productivity, all of which feed through into pension fund portfolios.
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The report also points to rising governance and regulatory pressures. Pension trustees are having to grapple with evolving climate disclosure requirements, questions around data quality and scenario analysis, and heightened scrutiny from regulators, members and other stakeholders over how climate risks and opportunities are being managed. Effective climate governance, SPP argues, is becoming a core component of prudent, long-term pension management rather than a niche or optional extra.
Society of Pension Professionals President Calum Cooper said climate change could no longer be viewed as a distant threat. “Climate change is no longer a future risk for pension schemes, it is a present-day financial reality,” he noted, stressing that decisions taken over the next decade by trustees, policymakers and investors will help determine both the value of pension assets and the retirement outcomes of millions of savers. He drew a clear line between the real economy and retirement security, arguing that “you can’t separate the future of pensions from the future of the economy” and that “you cannot separate the future of the economy from climate change,” leading to the conclusion that “climate risk is now retirement risk.”
As climate risks intensify and schemes place greater emphasis on long-term resilience, the SPP is calling for a more informed and open debate about how the UK pensions system can continue to deliver good member outcomes in an increasingly uncertain world. The guide, Pensions in a Warming World, has been made freely available to all, offering trustees, employers and policymakers a detailed framework for integrating climate considerations into funding, investment and governance decisions.
