Carbon removal · Measured on site

Every tonne traces back
to the ground it left.

We put instruments on the site, pay for verification we don't get to choose, and publish the whole chain — reading by reading — where anyone can open it.

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Tonnes CO₂ on the record
0
Sites under instrument
0
Countries we work in
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Traced to source
Northwind Climate
Evergreen Capital
Terra Labs
Helios Energy
Canopy Group
Meridian Holdings
Axiom Partners
Southbridge
Where the numbers break

Ask where a number came from, and the answer runs out.

Most removal figures are modelled rather than measured, reported by the people being paid for them, and signed off by auditors those same people hired. Credits are plentiful. Readings are not.

Nobody downstream can check the work

A buyer receives a tonnage figure, a methodology they cannot open, and an attestation from a firm the seller picked and paid. Every number after the first one is inherited rather than checked.

Aerial view of forest canopy
0

of voluntary credits reviewed in 2025 had no instrument reading behind the figure.

Modelled from a desk

A coefficient, a land area, and an assumption about what happened underground. Change the coefficient and every tonne changes with it.

Who signs the cheque

A verifier hired by the project has an interest in being invited back. Independence has to sit in the payment structure, not the promise.

Nothing ever published

Methods sit behind paywalls and raw readings never leave the developer's server. You are left with the summary.

Mist rising off a forest canopy
How we work

We start at the instrument.

Every site we onboard gets our hardware, calibrated by us and logging without a break. The registry pays the verifier and assigns them by rotation. The raw readings go out attached to the credit.

  • 01 Our instruments go into the ground before a credit is discussed
  • 02 Verifiers arrive by rotation; a developer never picks who audits them
  • 03 Raw readings, the method version, and the signed attestation ship together
  • 04 Retirements are permanent, public, and countable by anyone
From ground to certificate

What happens to a reading

Four stages. Each hands the next something concrete, and each leaves a record you can open.

01

Measure

Instruments on the site log without a break. Soil sampling and satellite passes are checked against that site's own baseline, not a regional average.

02

Verify

An accredited verifier, drawn by rotation and invoiced to the registry, works through the batch and signs in public.

03

Issue

The batch enters the registry carrying its ID, its full reading history, and the verifier's signature.

04

Retire

A buyer retires it against a target. The entry is permanent, public, and can only be spent once.

The four pathways

Four pathways, one measurement bar.

The science differs, the timelines differ, the price differs. What we require before a credit is issued does not.

Biochar

Char that stays put for centuries

Crop residue is pyrolysed into a stable carbon and worked into the soil. It resists decomposition for 500–1,000 years, and the fields hold water better for it.

Permanence
500–1,000 yrs
Typical cost
$120–180 / t
Measurement
Mass balance + lab
Projects live
64
See biochar sites
Enhanced weathering

A slow reaction, hurried along

Crushed basalt is spread across farmland, where rainwater and atmospheric CO₂ turn it into stable bicarbonate that drains toward the ocean. The same weathering that regulates the climate, run faster.

Permanence
10,000+ yrs
Typical cost
$180–320 / t
Measurement
Soil cores + flux
Projects live
28
See weathering sites
Direct air capture

Filtered from the air, stored as rock

Industrial filters pull CO₂ straight out of ambient air. It is injected into basalt, where it mineralises into carbonate within about two years.

Permanence
Permanent
Typical cost
$380–600 / t
Measurement
Direct metering
Projects live
11
See capture sites
Reforestation

Living carbon, counted every quarter

Native species replanted on degraded land, measured by LiDAR and walked ground plots. A buffer pool and long stewardship contracts cover the reversal risk.

Permanence
40–100 yrs
Typical cost
$45–95 / t
Measurement
LiDAR + plots
Projects live
77
See forest sites
Currently reporting

Sites reporting right now

Each of these publishes its raw readings. Hover for the numbers.

A tractor working a field
Biochar

Kelantan Rice Husk Co-op

Kelantan, Malaysia

Eleven smallholder mills turning rice husk into biochar instead of burning it in the open, across 4,200 hectares of paddy.

18,400 t
Removed
340
Farmers
Restored forest landscape
Reforestation

Sabah Highland Restoration

Sabah, Malaysia

Native dipterocarp replanted on spent logging concessions. Drone LiDAR every quarter, stewardship held by the communities living there.

31,200 t
Removed
2,800 ha
Restored
Industrial pipework and valves
Direct air capture

Nordic Mineralisation Plant

Hellisheiði, Iceland

Geothermal-powered capture with basalt injection. Core samples confirm the CO₂ has turned to carbonate inside 24 months.

9,600 t
Removed
100%
Renewable
A waterway winding through dense forest, seen from above
99.8%
Traceable
0
Reversals
100%
Public data
Open by default

Everything you need to check us yourself.

Every credit we issue carries its own history: the instrument that measured it, the verifier who signed it, the version of the method applied, and the coordinates of the site it came from.

Your auditor can follow any tonne in your portfolio back to the ground without sending us a request. Nothing about the check depends on us cooperating.

See the buyer side
Our auditor asked which instrument produced a number. Carbonland was the first platform where somebody could just answer that, same day, without a call.
AS
Aisha Santos
Head of Sustainability · Meridian Holdings
Both sides of the ledger

Whether you remove the carbon or report it

For Suppliers

Paid on what the instruments say

Sites that can show their readings get better prices and longer contracts. The measurement is the thing buyers are paying for.

  • Instruments and MRV tooling supplied
  • Multi-year offtake, paid up front
  • Verification arranged and paid for by us
  • On the record inside four weeks
For suppliers
For Buyers

A portfolio that survives the follow-up

Boards, auditors and journalists all ask the second question. Build a portfolio where the answer is already sitting in the record.

  • Instrument readings behind every tonne
  • Spread across four removal pathways
  • Retirement records an auditor can use
  • Site visits and direct developer contact
For buyers
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Tonnes CO₂ on the record
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Sites under instrument
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Readings traced to the instrument
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Countries we work in
Questions

What buyers ask us first

A normal registry files what the developer sends it. We produce the measurement ourselves, on hardware we install and maintain, hand the audit to a verifier chosen by rotation, and publish the raw readings with the credit. Recording it is the last step here, not the whole job.

We do, out of a pooled fee taken at issuance. A developer never picks their verifier and never pays one, and verifiers rotate between sites. The separation is in the plumbing rather than in a policy document.

We only issue against removals the instruments recorded, so a shortfall means fewer credits rather than thin ones. On the biological pathways a buffer pool, funded by a slice of every issuance, covers buyers if a reversal is confirmed.

The methods are written against the ICVCM Core Carbon Principles, and the claims guidance we give buyers follows the VCMI Claims Code. Retirement records are structured for GHG Protocol reporting and the incoming EU CRCF. Ask us and we'll send the mapping for each.

Yes, and we would rather you did. Site access is written into every offtake agreement. We arrange the visit with the developer, and if you want the technical version, with the verifier who audits the site.

Spot starts at 100 tonnes. Multi-year offtake, where most of the price advantage sits, usually starts at 1,000 tonnes a year. If a smaller volume would be better served somewhere else, we will say so.

Get started

Start with the measurement

Tell us whether you're removing the carbon or reporting it, and we'll walk you through the part of this that applies to you.