Carbon credits are often reduced to a number: one ton of CO₂. A single unit traded, counted, retired. Simple on paper.

In practice, that single ton carries a long and often invisible journey.

Behind every carbon credit is a chain of technical decisions, financial assumptions, monitoring systems, and verification steps designed to answer one basic…

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Biochar is often framed through a compelling narrative. Agricultural residues are transformed into stable carbon, soils improve, and local systems gain value from what was once waste. It is a clear and persuasive story. Yet, as highlighted during the April 2026–Circular Bionutrient Economy Association (CBEA)-Monthly Call, this narrative is…

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A recent post by Ajay Darade positions biochar as a frontrunner in early carbon markets. The argument is clear. Permanence. scalability. strong MRV. co-benefits. high demand.

There is truth in this. But it needs sharper framing.

First, permanence is real, but not automatic. Biochar can store carbon for long periods. That depends on…

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Over the past year, many of us have felt the carbon removal sector shifting—less hype, more scrutiny, and far harder questions about scale, integrity, and who ultimately pays. This piece captures that transition with unusual clarity and is well worth a few minutes of your time.

The carbon removal sector has entered its first serious test.

In a…

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For years, biochar sat at the edge of the carbon conversation. Known by specialists. Tested by early adopters. Rarely central to corporate climate plans.

That changed fast.

In the first half of 2025, buyers contracted around 1.6 million tonnes of biochar carbon removal. This single six-month period exceeded all purchases made across 2022 and…

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A follow up to our last post from Puro.earth methodology update in biochar and retail options.

Biochar has long been recognized inside our industry as a carbon-negative material with multiple co-benefits: waste-wood diversion, emissions reduction, soil improvement, and durable carbon storage. But a recent article by Michael Keller (Consultant…

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Puro.earth released an update to the Biochar Methodology Edition 2025 that brings retail biochar into CORC-eligible use pathways under strict conditions. The change reflects a growing market reality and a more mature understanding of risk.

Key points

• Retail biochar was initially excluded from CORCs because reversal and traceability risks were…

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Biochar Projects in Carbon Markets: A Simple Supplier Checklist

Most people have heard about carbon credits. Few understand the steps that give a credit real value. A credit is only as strong as the evidence and controls behind it.

This post brings two pieces together: First, the weak points in project data. Second, the lifecycle of a credit…

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Supercritical’s review shows that governments are moving toward permanence thresholds of 100 years or more as they integrate CDR into compliance systems. This creates strong value for high-integrity removals, but only if projects have transparent data and verifiable pathways.

Key points for carbon market participants:
• Strong MRV is not only a…

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There is growing interest in whether the EU ETS and UK ETS — the world’s largest compliance carbon markets — could become major buyers of durable carbon removals (CDR) such as biochar.

A recent analysis suggests the answer is: not yet… and not guaranteed.

Here are the key points for our community:

1. ETS systems are still focused on reducing… Read more

Something important happened at COP. The Clean Development Mechanism is now officially closed, and countries adopted the first steps to build the new UN-regulated carbon market under Article 6. It is not operational yet, but for the first time since 2021 there is a funded path toward a functioning system by 2026.

What was agreed

• The CDM closed…

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Many people still confuse these three terms (I do). The difference matters for anyone working with biochar or removals. If you also, struggle to understand the difference, here is the simple version.

Carbon Credit
A carbon credit equals one tonne of CO₂ reduced or removed.
Companies buy credits to balance emissions they cannot avoid. Credits come…

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Feedstock integrity is the first condition for credible removals. When biomass origin is unclear, carbon balance becomes uncertain and certification risk rises.

Why it matters
• Unsustainable residues reverse climate benefit.
• Methodologies require proof of legal sourcing.
• Buyers expect basic land-use transparency.

What certification bodies…

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Recent discussions in the CDR community highlight an important reminder for anyone producing or purchasing biochar removals. When the origin of biomass is unclear, the climate value becomes uncertain, especially in regions with high deforestation pressure or weak land-use oversight.

Several public reports note that large biochar deals are…

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CORSIA recently approved Isometric’s biochar protocol. This is a good sign, but it does not mean airlines can buy or use biochar credits yet. The rules behind the system are still being built.

Here is what matters for anyone working with biochar:

• Approval is only the first step.

A protocol on a list does not unlock demand. Host countries must…

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Puro.earth shares insights from the recent Biochar Persistence Workshop, where standards and researchers met to align science and methods on biochar durability. The article highlights progress toward greater consistency and transparency in how the sector measures and communicates biochar carbon permanence.

In July 2025, Puro.earth called for…

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I want to share a recent article by Robert Höglund, “Everyone says we need CDR, but no one plans to use it.”

He argues that carbon dioxide removal (CDR) is often treated as a last resort—something to use only for “unavoidable” emissions. In practice, this limits deployment and slows progress toward net zero.

Key takeaways:

• CDR should be treated…

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