Fossil-free investing is a more specific claim than broad ESG (environmental, social and governance), but definitions still vary. Use these guides to compare fossil-free funds, fund greenwashing, SDR (Sustainability Disclosure Requirements) labels, climate risk and the practical checks investors should make.
Fossil-free fund guides to read first
| Guide | Best for | What it helps you check |
|---|---|---|
| Fossil-free funds UK | Investors who want exclusion clarity | How funds define fossil fuel exposure and what thresholds apply. |
| What are ESG funds? | Readers comparing broad ESG with stricter exclusions | Why a fund can be ESG-labelled without being fully fossil-free. |
| Fund greenwashing checklist | Due diligence readers | How to test names, holdings, exclusions, impact claims and stewardship evidence. |
| FCA SDR labels explained | UK fund investors | How labels, disclosures and the anti-greenwashing rule affect sustainable fund claims. |
| Norway's sovereign wealth fund | Readers comparing exclusion frameworks | How explicit exclusions, observation lists and public holdings disclosures work at sovereign-fund scale. |
| Church of England pension fund explained | Readers comparing engagement with fossil-fuel exit decisions | How a UK pension fund used stewardship escalation before leaving Shell and remaining oil and gas holdings. |
| Climate risk and investment portfolios | Portfolio reviewers | Why fossil-free does not remove every form of climate risk. |
Core checks
- Does the fund exclude fossil fuel reserves, revenue, power generation or financing?
- Are thresholds clearly stated?
- Does the fund still hold banks, utilities or industrial companies with fossil fuel exposure?
- Does the fund publish holdings and stewardship evidence?
- Does the claim match the fund name?
Fossil-free is not one definition
Fossil-free investing sounds simple, but the details vary. One fund may exclude companies that own fossil fuel reserves. Another may exclude coal but still hold oil and gas majors below a revenue threshold. Another may avoid producers but still hold banks, insurers, utilities, industrial companies or transport businesses with material fossil fuel exposure. A portfolio can therefore be fossil-free by one definition and still exposed to transition risk by another.
This is why the exclusion policy matters more than the label. A useful fund document should explain which fuels are covered, whether reserves, revenue, power generation or financing exposure are included, what thresholds apply, how often holdings are reviewed, and whether engagement is used alongside exclusions.
How to compare fossil-free funds
| Check | Question | Why it matters |
|---|---|---|
| Fuel coverage | Coal, oil, gas, power generation or services? | Some policies are broad while others only exclude the highest-emitting fossil fuel categories. |
| Thresholds | Zero tolerance or revenue limits? | A fund can still hold companies with fossil fuel exposure below a stated threshold. |
| Indirect exposure | Are banks, utilities and industrial companies reviewed? | Climate risk can remain outside fossil fuel producers. |
| Portfolio risk | What sectors and regions replace fossil fuel exposure? | Exclusions can change diversification, concentration and valuation risk. |
| Stewardship | Does the manager vote and engage on climate issues? | Some funds combine exclusions with active ownership of transition-exposed companies. |
When fossil-free may not be enough
A fossil-free fund can help investors avoid direct exposure to fossil fuel producers, but it does not automatically create a complete climate strategy. It may still hold companies exposed to supply-chain emissions, physical climate risk, weak transition planning or carbon-intensive customers. It may also miss companies involved in credible transition work if the exclusion rules are strict.
The better question is whether the fund's claim matches the investor's objective. If the objective is ethical exclusion, fossil-free rules may be central. If the objective is climate-risk management, emissions data, transition plans, sector exposure, stewardship and diversification also need to be reviewed.
What to read next
Start with the fossil-free funds UK guide if you want the practical exclusion checklist. If you are comparing broader sustainable funds, use the sustainable funds guide and the FCA SDR labels explainer to understand how UK fund labels and disclosures fit into the decision. If the concern is portfolio risk rather than ethical exclusion, the climate risk portfolio guide is the better starting point.
For real-world comparisons, the Norway sovereign wealth fund guide shows how a large investor publishes holdings, exclusions, observation decisions and stewardship evidence, while the Church of England pension fund guide shows how engagement can lead to a fossil-fuel exit. Retail funds will not always disclose that much, but the same principle applies: the clearer the rules, the easier the claim is to test.
Bottom line
Fossil-free investing is useful only when the exclusion rules are visible, specific and consistently applied.
Financial information only
Education only. This is not investment advice, a recommendation, or a personal financial promotion. Exclusions can change portfolio risk and investments can fall in value.