--- title: fiduciary duty and esg for a universal owner canonical_url: https://ensurance.app/guide/fiduciary-duty-and-esg-for-a-universal-owner markdown_url: https://ensurance.app/guide/fiduciary-duty-and-esg-for-a-universal-owner.md subtitle: "prudence is about the beneficiary, not the headline" category: nature-finance --- # fiduciary duty and esg for a universal owner *prudence is about the beneficiary, not the headline* **Fiduciary duty** is the duty of loyalty and prudence that a trustee owes the people whose money it holds. In a pension fund, loyalty means acting in the sole interest of members and beneficiaries. Prudence means the care, skill and diligence a careful expert would bring to the same job. The **fiduciary duty and ESG** question is narrow: may a trustee weigh environmental, social and governance factors, must it, and when? A [universal owner](/guide/what-is-a-universal-owner?from=guide) is an institution so large and diversified that it holds a slice of the whole economy. For it, the answer turns on what sits under the book. Under every holding are living systems: the watersheds, soils, forests, pollinators, wetlands and coasts that make the conditions companies earn in. They exist whether or not anyone holds a certificate. [**Ensurance**](/specific?from=guide) is how an owner can fund one of them, at a named place, now. It is not the place, and it does not settle any question of duty. This post describes what fiduciary duty is generally understood to require and what has changed. It is not legal advice. :::johnson **prudence is about the beneficiary, not the headline.** — The test that recurs across the legal work is the same: what does this factor do to the members' money over the members' horizon. [see where nature sits in a universal owner's book →](/guide/nature-risk-portfolio-risk-universal-owners?from=guide) ::: ## the objection, at full strength The strongest case against ESG in a pension fund is a reading of the duty itself. The money belongs to the members. A trustee who spends it on a cause the members did not choose, or accepts a lower return for a benefit that lands on someone else, has put a third party ahead of the people the duty protects. That is a breach of loyalty whatever the cause. The US federal statute, ERISA, says private-sector plan fiduciaries act "solely in the interest of the participants and beneficiaries" and "for the exclusive purpose" of providing benefits. State and local government plans fall under state law, which is where most anti-ESG statutes apply. Read that way, a nature pledge is at best a distraction and at worst a conflict. The politics have moved toward that reading. US states introduced 106 anti-ESG bills in 2025, and 52 have been signed into law in 21 states since 2021, according to Pleiades Strategy's 2025 statehouse report. In *Texas et al. v. BlackRock, State Street and Vanguard*, filed in the Eastern District of Texas in November 2024, the states allege that climate-coalition stewardship restrained coal output. On 1 August 2025 the court largely denied the motion to dismiss, and Vanguard reportedly settled in February 2026 without admitting wrongdoing. This post takes no view on the merits. For a trustee, that is the setting the pecuniary question now has to be answered in. [Why universal owners act alone and lose together](/guide/why-universal-owners-act-alone-and-lose-together?from=guide) covers what happened to the coalitions. Much of this is right. A trustee who cannot say how a position serves members' money should not hold it. ## what the legal work actually says The legal analysis is older than the fight, and it shares more common ground than the headlines suggest. | year | where | the document | what it says, in short | |---|---|---|---| | 2005 | Many jurisdictions | Freshfields for UNEP FI, *A Legal Framework for the Integration of Environmental, Social and Governance Issues into Institutional Investment* | Weighing ESG factors to predict financial performance more reliably is clearly permissible, and arguably required | | 2014 | UK | Law Commission, *Fiduciary Duties of Investment Intermediaries* | Trustees should take financially material factors into account, which can include ESG; non-financial factors only with good reason to think members share the concern and no risk of significant financial detriment | | 2016 | EU | IORP II Directive | Occupational pension funds' own risk assessment covers ESG risks | | 2020 | US | ERISA rule | Plan fiduciaries limited to pecuniary factors | | 2021 | EU | Sustainable Finance Disclosure Regulation, applied from March 2021 | Asset managers and pension providers disclose how they integrate sustainability risks | | 2021 | Many jurisdictions | Freshfields for PRI, UNEP FI and the Generation Foundation, *A Legal Framework for Impact* | Where pursuing a sustainability impact serves an investor's financial goals, including by reducing system-wide risk to a diversified portfolio, the law may permit or require it | | 2022 | US | ERISA rule, effective 30 January 2023 | Climate and ESG factors may count where they bear on risk and return | | 2025–2026 | US | Labor Department and Congress | In May 2025 the department said it would replace the 2022 rule; the House passed a pecuniary-only bill on 15 January 2026, and the Senate has not acted; a revised rule went to White House review in summer 2026 | This post covers the US, UK and EU; other regimes differ, and counsel in each will say how. It does not say what the revised ERISA rule will contain. Counsel will read it when it is final. ## the narrow, durable point Read the table for what the documents share. The 2020 rule and the 2022 rule disagree about how much room a fiduciary has. Neither tells a fiduciary to ignore a factor that is material to the risk and return of the plan. The 2020 rule built its own test around pecuniary factors, those expected to have a material effect on risk or return. The UK Law Commission drew the same line. Freshfields drew it in 2005 and in 2021 argued it can extend to system-wide risk. That is the **pecuniary case**, and it is the common ground the 2020 and 2022 US rules, the UK Law Commission and Freshfields share. It asks one question: what does this factor do to the beneficiaries' money, over their horizon? It does not ask whether the factor is fashionable or whether a trustee cares about it. A treasurer who wants ESG out of pensions and a trustee who wants nature in can both sign that question. The horizon is the members', not the scorecard's. [What the tragedy of the horizon costs a universal owner](/guide/what-the-tragedy-of-the-horizon-costs-a-universal-owner?from=guide) follows that gap through the agency chain. ## where nature sits in the pecuniary case For a single-stock investor, a degraded watershed is one company's problem. A universal owner holds the whole market, so it holds the company that degrades the watershed and every company that drinks from it. The market's return is the return of an economy that stands on living systems, which is the universal-owner argument, from Hawley and Williams and from Lukomnik and Hawley, for why [the risk a universal owner cannot diversify away](/guide/the-risk-a-universal-owner-cannot-diversify-away?from=guide) is systematic risk, the market-wide kind that diversification cannot remove. It is not the same thing as [systemic risk](/guide/what-systemic-risk-actually-is?from=guide), the failure of a whole system, though the two meet. The evidence that this reaches a fund's own numbers is early, and mostly about climate. In a UK defined-benefit case study for the Institute and Faculty of Actuaries, Ortec Finance and Cambridge Econometrics found that climate pathways delayed full funding by 3 to 9 years with no change in investment strategy. That is a scenario, not a forecast, and funding level is the beneficiaries' number. Insurers price exposure of the same kind. State Farm stopped taking new California property applications from 27 May 2023, citing catastrophe exposure. So nature enters the fiduciary case the way any material risk does: through the money. A trustee need not value a forest for its own sake to ask whether the holdings that depend on it are priced for its decline. That is the narrow case this post makes; it is not the only reason a forest or a watershed matters. [A disclosure is not a transaction](/guide/a-disclosure-is-not-a-transaction?from=guide) explains what TNFD reporting does and does not change. ## what the owner's tools already do Owners have built real machinery here, and it sits inside the pecuniary case. Norges Bank Investment Management publishes nature expectations for its portfolio companies. PRI Spring and Nature Action 100 coordinate investors on deforestation and nature. All of it works on companies and their disclosures. Water funds, conservation easements, timberland and farmland, and impact allocations such as ABP's target of at least €1 billion for biodiversity by 2030 already put money into named places, project by project. What is missing is an instrument any owner can hold at a place that many holdings depend on at once. That gap is a missing instrument, not a legal problem; [divest, reprice or protect](/guide/divest-reprice-or-protect?from=guide) sets out why the first two options leave the ground where it was. ## a commitment judged on the risk it addresses If a trustee considers funding a living system directly, the file needs what any commitment needs: the risk it addresses, in the owner's words; what the money does; how condition is read; who can check it. That tests the commitment, not the cause. | a trustee's question | what ensurance shows | what it does not do | |---|---|---| | Which risk does this address? | An account addressed to one named place or purpose, so the dependency can be named | Prove that the place moves the portfolio's numbers | | Where does the money go? | Proceeds fund the parcel first, its land, water and flows, then the people who keep it | Give the holder a deed or a claim on the land | | How is it measured? | Condition read now, every period, not against a counterfactual baseline | Replace the owner's own risk models | | Who can check it? | A public ledger anyone can audit | Make the commitment prudent | | Is it at scale? | A protocol and a service, small and early | Meet a large owner's ticket size today | On ensurance, proceeds go to the underlying first: an ensured parcel's capital cost until it is secure, then the stewardship that keeps it. A certificate is not a deed; a policy has a cooperating titleholder. The stage, as of 24 October 2026: 2,085 active accounts, 86 with a wallet deployed, 26 policies, 191 coins, and about US$8 of seven-day volume. Live accounts include [risk resilience](/risk-resilience.ensurance?from=guide) and [water abundance](/water-abundance.ensurance?from=guide). Ensurance does not make anything prudent. Trustees decide that, with counsel, under their own law and documents. What it can offer is a funding commitment described in the pecuniary case's own terms, and checked. Whether it fits a fund's documents is for counsel. ## frequently asked questions ### does fiduciary duty allow esg investing? Generally, where ESG factors bear on risk and return, the major legal analyses say a fiduciary may weigh them, and some say it is arguably required (Freshfields in 2005; the UK Law Commission in 2014, for financially material factors); the US 2022 rule says it may. Where a factor serves a goal other than the members' money, the answer is generally no, with narrow exceptions; the UK test allows it only where members would share the concern and it risks no significant financial detriment. US federal rules are being revised in 2026. ### is it a breach of fiduciary duty to ignore climate or nature risk? That depends on the jurisdiction, the fund's documents and the facts. The 2021 *Legal Framework for Impact* argued that where pursuing a sustainability impact serves an investor's financial goals, including by reducing system-wide risk to a diversified portfolio, the law may permit or require it. It is an argument, not settled law everywhere, and this post does not say what any fund must do. ### what is the difference between a pecuniary and a non-pecuniary factor? A pecuniary factor is one expected to have a material effect on an investment's risk or return. A non-pecuniary factor serves some other aim. The US rules since 2020 have used this line, and the fight is mostly over how wide each side of it is. ### does ensurance satisfy fiduciary duty? No. Nothing a vendor or a protocol offers can satisfy a duty that belongs to the trustee. Ensurance gives an owner an account addressed to a named place, condition read now, and a public ledger. Whether making any commitment is prudent is the trustee's call, with counsel. ## next The legal question is narrower than it looks. The practical one is harder: [why pension funds don't invest in nature](/guide/why-pension-funds-dont-invest-in-nature?from=guide) takes the ticket size, liquidity and measurement problems one at a time. If you hold long-term capital for others, [foundations](/solutions/foundations?from=guide&topic=universal-owners), [insurers](/solutions/insurers?from=guide&topic=universal-owners) and [governments](/solutions/governments?from=guide&topic=universal-owners) show where we work today. If you can name the place your book depends on, [tell us which](/contact?from=guide&topic=universal-owners). ## sources [29 U.S.C. § 1104, ERISA fiduciary duties](https://www.law.cornell.edu/uscode/text/29/1104) — "Solely in the interest" and "exclusive purpose" language. Freshfields Bruckhaus Deringer for UNEP FI. 2005. *A Legal Framework for the Integration of Environmental, Social and Governance Issues into Institutional Investment*. — ESG integration to predict financial performance permissible, arguably required. Law Commission (England and Wales). 2014. *Fiduciary Duties of Investment Intermediaries* (Law Com No 350). — Financially material factors, including ESG; the test for non-financial factors. [Directive (EU) 2016/2341 (IORP II)](https://eur-lex.europa.eu/eli/dir/2016/2341/oj) — ESG risks in occupational pension funds' own risk assessment. [Regulation (EU) 2019/2088 (SFDR)](https://eur-lex.europa.eu/eli/reg/2019/2088/oj) — Sustainability-risk disclosure, applied from March 2021. Freshfields Bruckhaus Deringer for PRI, UNEP FI and the Generation Foundation. 2021. *A Legal Framework for Impact*. — Sustainability impact where it serves financial goals, including system-wide risk. US Department of Labor. 2020. Financial Factors in Selecting Plan Investments (final rule). — Pecuniary-factor limit. [US Department of Labor. 2022. Prudence and Loyalty in Selecting Plan Investments and Exercising Shareholder Rights, 87 FR 73822](https://www.federalregister.gov/documents/2022/12/01/2022-25783/prudence-and-loyalty-in-selecting-plan-investments-and-exercising-shareholder-rights) — Climate and ESG factors where they bear on risk and return; effective 30 January 2023. ESG Dive and Ballotpedia, 2025–2026. — May 2025 replacement announcement; House pecuniary-only bill, 15 January 2026; revised rule at White House review, summer 2026. Pleiades Strategy. 1 July 2025. *2025 Statehouse Report*. — 106 anti-ESG bills in 2025; 52 signed into law in 21 states since 2021. ESG Dive; Climate Case Chart. *Texas et al. v. BlackRock, State Street, Vanguard* (E.D. Tex.). — Filing November 2024; motion to dismiss largely denied 1 August 2025; Vanguard settlement reported February 2026. Ortec Finance and Cambridge Econometrics, Institute and Faculty of Actuaries case study (2020/2022). — Climate pathways delayed full funding 3–9 years in a UK DB scheme. State Farm statement, via CBS News, 2023. — No new California property applications from 27 May 2023. [Ensurance catalog](/explore?from=guide) — Read 24 October 2026: 2,085 active accounts, 86 with a wallet deployed, 26 policies, 191 coins, about US$8 of seven-day volume. ## the series 1. [what is a universal owner](/guide/what-is-a-universal-owner?from=guide) 2. [the risk a universal owner cannot diversify away](/guide/the-risk-a-universal-owner-cannot-diversify-away?from=guide) 3. [what the tragedy of the horizon costs a universal owner](/guide/what-the-tragedy-of-the-horizon-costs-a-universal-owner?from=guide) 4. [why universal owners act alone and lose together](/guide/why-universal-owners-act-alone-and-lose-together?from=guide) 5. fiduciary duty and esg for a universal owner (this post) 6. [why pension funds don't invest in nature](/guide/why-pension-funds-dont-invest-in-nature?from=guide) 7. [what system-level investing looks like at a named place](/guide/what-system-level-investing-looks-like-at-a-named-place?from=guide)