Skip to main content
Back to Glossary
Definition

Biogenic carbon

Biogenic carbon is carbon derived from living organisms or biological processes, tracked separately from fossil carbon in product, land and greenhouse gas accounting.

What is biogenic carbon?

Biogenic carbon comes from living organisms or biological processes, not fossil sources. It appears in bio-based plastics, wood, paper, biofuels and organic waste. Burning, decomposition or oxidation releases CO2; biological origin does not make the release zero or the material carbon neutral.

Why does biogenic carbon matter to you?

A customer may ask how your product carbon footprint treats bio-based material, end-of-life emissions or stored carbon. Without separate labels, they cannot check the result against the requested method.

How does biogenic carbon work in an inventory?

Track each flow by source, material, mass, period and the point where its carbon is released to the atmosphere. Document how you split the fossil and biogenic shares of any mixed material. Under the GHG Protocol Corporate Standard, report direct CO2 from biomass combustion separately from Scope 1. Keep methane and nitrous oxide from the same combustion in the inventory.

The GHG Protocol Land Sector and Removals Standard takes effect on 1 January 2027. Under Requirement 17, where you report biogenic product CO2 depends first on whether you report all GHG emissions from the product's life cycle. You must also report its land use and, where required, emissions caused when the product displaces food or feed production. The standard calls the latter land carbon leakage. Carbon held in goods is not automatically a removal. If you choose to report product carbon storage, Requirement 24 requires the annual change in carbon held in sold products, plus data on carbon content, product lifetime and material conversion.

What mistakes should you avoid?

  • Calling biomass combustion zero emissions or automatically carbon neutral.
  • Removing methane and nitrous oxide when separating biogenic CO2.
  • Combining fossil and biogenic shares without a documented split.
  • Claiming stored carbon from product content alone.

Is biogenic carbon carbon neutral?

No. The label identifies origin, not climate impact. You still need the applicable life-cycle boundary, land emissions, processing emissions, point-of-oxidation emissions and any qualified storage calculation.

What should you send when a customer asks about biogenic carbon?

Send the material and batch IDs, supplier declaration, biological feedstock and country of origin, carbon-content method, fossil-biogenic split, activity data, factor source, calculation, reporting year, inventory category and treatment of storage or end-of-life.

Example

Clearly hypothetical example: Suppose a plastics moulder in Japan sells 100,000 durable parts during 2027. Supplier composition records and batch receipts show 0.12 kg of agricultural biogenic carbon in each part. The parts add 100,000 x 0.12 = 12,000 kg of biogenic carbon to the sold-product use-stage pool.

Records show that sold parts held 40,000 kg of this biogenic carbon at the start of the year and that 3,000 kg left the use stage for end-of-life treatment. The closing pool is 40,000 + 12,000 - 3,000 = 49,000 kg, so the annual net increase is 9,000 kg of biogenic carbon. This stock increase is not 9,000 kg CO2e, an emissions credit or a removal. The moulder may report it as product carbon storage only if the products meet Land Sector and Removals Standard Requirements 24 and 25.PS. That requires complete life-cycle accounting and the specified data on carbon content, product lifetime and material conversion.

Where it comes up

GHG Protocol direct CO2 from biomass combustion reported separately from Scope 1Corporate Standard, Chapter 4, page 25Official sourceGHG Protocol biogenic product CO2, methane and nitrous oxide accountingLand Sector and Removals Standard v1.1, Requirement 17, pages 59-61Official sourceGHG Protocol product carbon storage based on annual net stock changeLand Sector and Removals Standard v1.1, Requirements 24 and 25.PS, pages 85-87Official sourceGHG Protocol separate product reporting of biogenic and non-biogenic emissions and removalsProduct Life Cycle Accounting and Reporting Standard, Chapter 11, pages 86-91; Chapter 13, page 103Official source

Related terms

Product carbon footprint (PCF)

A product carbon footprint (PCF) is the greenhouse gas emissions assigned to one product across a stated life-cycle boundary and expressed per declared or functional unit.

Life cycle assessment (LCA)

A life cycle assessment (LCA) estimates a product's or service's potential environmental impacts for a defined function and life-cycle boundary, using recorded inputs, stated impact methods, and a documented interpretation of the results.

Scope 1 Emissions

Scope 1 emissions are greenhouse gases released directly from sources your company owns or controls, including fuel-burning equipment and vehicles, industrial processes, and refrigerant or other gas leaks.

Scope 3 Emissions

Scope 3 emissions are the indirect greenhouse gas emissions from goods, services, transport, product use, investments, and other upstream and downstream activities outside your company's Scope 1 and Scope 2 boundary.

Sources

  • GHG Protocol

    Requirements 17, 24 and 25.PS for biogenic product emissions and product carbon storage

    2026-08-20

  • GHG Protocol

    Corporate Standard treatment of direct CO2 from biomass combustion

    2026-08-20

  • GHG Protocol

    Product inventory calculation and separate reporting of biogenic carbon flows

    2026-08-20

Last verified 2026-08-20

Ready to start?

Tell us what you need.

Bring us the sustainability request, reporting deadline, or strategy question you are facing. We will read it and suggest a practical first step, and the first conversation is free.

Get in touch
Biogenic carbon Definition | Keslio