---
title: what a carbon fund actually buys
canonical_url: https://ensurance.app/guide/what-a-carbon-fund-actually-buys
markdown_url: https://ensurance.app/guide/what-a-carbon-fund-actually-buys.md
subtitle: a tonne in a portfolio — or a hold on the watershed the buyer already depends on
category: ensurance
---

# what a carbon fund actually buys

*a tonne in a portfolio — or a hold on the watershed the buyer already depends on*

A carbon fund buys a tonne. It buys it carefully — priced, verified, retired, reported. What it does not buy is the river outside the buyer's window.

This post is for the desk that already holds a carbon book and is being asked what else it can hold. The fund can stay. The question is what sits beside it.

## what a carbon fund holds

A **carbon fund** is a pooled vehicle that buys carbon credits, or the projects that generate them, on behalf of investors or a corporate buyer. Some hold compliance allowances. Most hold voluntary credits from forestry, peatland, soil, or engineered removal. The unit of account is the tonne: one tonne of carbon dioxide equivalent avoided or removed, measured against a baseline, retired against a claim.

That is a real job. A tonne moves money to a landscape that might not have been funded otherwise, and a fund does it at a scale and with a diligence a single buyer cannot afford. Nothing here asks anyone to close that book. If the market itself is the question, start with [what a carbon market actually is](/guide/what-a-carbon-market-actually-is).

Now look at what the tonne was abstracted from. A forest, a peatland, or a tidal marsh stores carbon and does the rest of its work — holding water, cooling air, feeding fish — whether or not anyone sells a tonne. The fund holds a priced slice of one flow. It does not hold the place.

> A carbon credit is one way to pay. It is not the only way, and it is not a hold on the living system.

## the water under the headquarters

**Climate Asset Management** is the natural-capital book inside HSBC Asset Management, run with Pollination. It has secured commitments of more than $1 billion for natural-capital projects. It buys landscape restoration and carbon credits, much of it in emerging markets, and it has committed to report against the **TNFD** (the Taskforce on Nature-related Financial Disclosures) framework at the fund level. By any fair reading, it is a buyer that already holds the shape this series describes, and holds it well.

Here is the exposure the fund does not cover. HSBC's headquarters stands at 8 Canada Square in Canary Wharf. The tower's water draws on the Thames catchment — the river and the land that drain to it — which supplies about two-thirds of London's drinking water. A retired tonne from a restoration project on another continent does not hold the catchment under the building. Not because anyone did anything wrong. A tonne is not a river.

The fund and the building sit inside the same group and carry different dependencies. The fund holds landscape carbon elsewhere. The building drinks the Thames.

## the river exists either way

The Thames runs 346 kilometres from the Cotswolds to the North Sea and drains roughly 12,900 square kilometres. Storm overflows still pressure its tidal reach; fish returned over three decades and can leave again. None of that depends on whether a fund buys a tonne this quarter. The river was doing the work before the market and will do it after.

What the river lacks is not a price. It is a standing payer for its present condition — someone whose interest is the catchment staying whole, not a certificate of neutrality elsewhere. The two-thirds figure is a bridge for a finance committee. It is not what the river is worth.

## the second layer

This is the offer, stated before the click.

**Buyer.** Two desks, two roles. The payor for Thames water is HSBC's London headquarters — the property and sustainability teams who carry the building's costs, because the dependency is theirs. Climate Asset Management is the book inside the same group that already buys landscape carbon, and it could hold a position on the Thames beside that book. The carbon book stays. The Thames line is an additional program, shaped with them.

**Solution.** [Solutions for corporations](/solutions/corporations?from=guide&topic=carbon-market-alternatives) does two things that matter here: it maps a company's dependencies on ecosystem services across operations and supply chains, and it funds the natural infrastructure the business already depends on — watersheds first — through ensurance instruments, with verified, auditable data for TNFD and ESG reporting. That is the service, reported as a contribution, not a neutrality claim.

**Living system.** The Thames catchment. It exists whether or not the fund buys a tonne.

**Instrument.** The catchment has a live onchain steward: [thames-river.basin](https://ensurance.app/thames-river.basin?from=guide). An *ensurance* certificate on that agent would be one-to-one with the place — not fungible, not retired, not an offset. None is minted yet. The proposed line is **thames source hold**: coming soon, co-created with its first payer through the suggest link rather than a checkout: [name the line →](/specific/create?mode=suggest&agent=thames-river.basin&name=thames%20source%20hold&from=guide). The agent is live; the line is waiting for its first payer. Our volumes are small.

**Unit.** One contribution line for the headquarters' water dependency, reported beside the carbon fund. It is sized with the buyer from the building's water use and the catchment's share of London's supply. Not per tonne. Not neutrality. A line the CFO can read next to the fund and understand what each one holds.

**Door.** [Talk to someone who can walk the unit](/contact?from=guide&topic=carbon-market-alternatives). Property and sustainability readers can start on the [corporations page](/solutions/corporations?from=guide&topic=carbon-market-alternatives); the fund reader's door is the [investors page](/solutions/investors?from=guide&topic=carbon-market-alternatives).

:::johnson
**a carbon fund buys a tonne. a hold funds the place that was doing the work anyway.** The fund stays. The second layer is a contribution on the Thames, reported beside it, on a live agent whose first line is still waiting for its first payer.

[see thames-river.basin →](https://ensurance.app/thames-river.basin?from=guide)
:::

## who pays for the second layer

One named row, because the exposure is public and specific. The rest are types.

| who | already holds | dependency | second layer | unit | door |
|---|---|---|---|---|---|
| **HSBC (London HQ), with Climate Asset Management** — SHOULD | A headquarters on Thames water; a natural-capital book with >$1bn in commitments for landscape restoration and carbon credits | Thames drinking water at the London headquarters | Contribution on `thames-river.basin`; `thames source hold` co-created, not yet minted | The headquarters' water dependency, one reportable line sized from the building's use and the catchment's share of supply | [contact](/contact?from=guide&topic=carbon-market-alternatives) · [investors](/solutions/investors?from=guide&topic=carbon-market-alternatives) |
| A compliance desk | Allowances or legally required tonnes | The catchment around its own plant | A hold on that catchment's agent, beside the retired tonne | One facility's water or flood dependency | [corporations](/solutions/corporations?from=guide&topic=carbon-market-alternatives) |
| A supply-chain inset | Funded work inside its own value chain | The orchard, soil, or watershed it sources from | A certificate on that landscape's agent, not an inset claim | Per sourcing region | [insetting is not an offset](/guide/insetting-is-not-an-offset) |
| A public budget | Grants, regulation, a carbon price | The city's water supply and flood defence | Co-funder beside private payers on the same agent | Per catchment | [governments](/solutions/governments?from=guide&topic=carbon-market-alternatives) |

The SHOULD row is not a verdict on the fund. A group that already pays for landscape carbon elsewhere has a nearer landscape it has not yet paid for. The agent is live; the line is proposed and waits for its first payer.

## the fund is one row, not the only one

Ensurance is not the only alternative to a carbon credit. Public finance and regulation stop harm from the public budget. Contribution claims move money without a neutrality label. Insetting funds the landscape inside a buyer's own supply chain. [Beyond value chain mitigation](/guide/what-beyond-value-chain-mitigation-actually-is) pays for mitigation outside it. Beneficiary-pays bonds, debt-for-nature swaps, nature shares, and [money based on living systems](/guide/a-carbon-currency-is-not-a-forest) are each real designs with real jobs.

The full survey is in [alternatives to carbon credits](/guide/alternatives-to-carbon-credits). Ensurance is the row that holds a named place. It is the one we know how to hold. It is not a replacement for regulation, public finance, or a tonne the buyer is legally required to retire.

## how to start

1. **Read the survey.** [Alternatives to carbon credits](/guide/alternatives-to-carbon-credits) gives every row its real job. Pick the one that matches yours.
2. **Look at the agent.** [thames-river.basin](https://ensurance.app/thames-river.basin?from=guide) is live. See what a place-level steward looks like.
3. **Name the line.** If the Thames is your dependency, [suggest thames source hold](/specific/create?mode=suggest&agent=thames-river.basin&name=thames%20source%20hold&from=guide) and shape it with us before it mints.
4. **Map the dependency.** The [corporations page](/solutions/corporations?from=guide&topic=carbon-market-alternatives) holds the mapping and the reportable data. If your water is not the Thames, the same page finds the catchment that is.
5. **Walk the unit.** [Contact](/contact?from=guide&topic=carbon-market-alternatives) with the subject already set. Bring the fund's reporting line; the second line is built to sit next to it.

## faq

### what is a carbon fund?

A carbon fund is a pooled investment vehicle that buys carbon credits, carbon allowances, or the projects that generate them, on behalf of investors or a corporate buyer. Its unit of account is the tonne of carbon dioxide equivalent, verified and retired against a claim.

### what does a carbon fund buy?

A carbon fund buys a priced slice of one ecosystem flow — carbon stored or avoided — from a landscape it does not hold. It can buy that slice well. It does not buy the watershed its own owner drinks from, and it does not buy the present condition of any named place.

### what can you fund instead of a carbon credit?

Public programs, contribution claims, insetting inside your own supply chain, beyond-value-chain mitigation, beneficiary-pays bonds, debt-for-nature deals, nature shares, or a hold on a named place. Ensurance is the last of these: a certificate one-to-one with a living system's agent, reported as a contribution rather than as neutrality. The other rows stand. The fund can stay.

## the series

1. [what a carbon market actually is](/guide/what-a-carbon-market-actually-is)
2. [alternatives to carbon credits](/guide/alternatives-to-carbon-credits)
3. [insetting is not an offset](/guide/insetting-is-not-an-offset)
4. [what beyond value chain mitigation actually is](/guide/what-beyond-value-chain-mitigation-actually-is)
5. [a carbon currency is not a forest](/guide/a-carbon-currency-is-not-a-forest)
6. what a carbon fund actually buys — this post

For the evidence on why offsets disappoint: [the carbon template biodiversity is copying](/guide/the-carbon-template-biodiversity-is-copying).

## sources

[Climate Asset Management — commitments in excess of $1 billion for natural capital](https://climateassetmanagement.com/insight/climate-asset-management-secures-commitments-in-excess-of-1-billion-for-natural-capital-projects/) — commitments secured and strategy (landscape restoration, carbon)

[TNFD adopters registry](https://tnfd.global/engage/tnfd-adopters/) — Climate Asset Management's commitment to report against the TNFD framework at the fund level

[River Thames](https://en.wikipedia.org/wiki/River_Thames) — length, catchment area, and the share of London's drinking water drawn from the catchment