Carbon Insetting vs Carbon Offsetting in Supply Chains: The Complete 2026 Guide

Across corporate sustainability reports, the terms “carbon insetting” and “carbon offsetting” appear with increasing frequency—yet they describe fundamentally different strategic relationships between a company and carbon markets. The confusion between them has significant consequences for supply chain decarbonization strategy, Scope 3 emissions accounting, and the credibility of net-zero commitments under frameworks including the Science Based Targets initiative (SBTi), GHG Protocol, and the EU Corporate Sustainability Reporting Directive (CSRD).

This guide defines both approaches precisely, examines their applications across major industries, evaluates their limitations and risks, explains how voluntary carbon markets are evolving to accommodate both, and provides a strategic framework for companies determining which approach—or combination—best serves their supply chain decarbonization and credibility goals.

Defining Carbon Offsetting: The Traditional External Market Approach

Carbon offsetting refers to the practice of purchasing carbon credits—verified reductions or removals of greenhouse gases achieved outside a company’s own value chain—to compensate for emissions that the company has not yet eliminated. Each offset credit represents one metric tonne of CO₂ equivalent (tCO₂e) that has been reduced or removed elsewhere in the global economy through projects such as forest conservation (REDD+), renewable energy development, methane capture from landfills or livestock, soil carbon sequestration, or direct air capture.

The voluntary carbon market (VCM) has grown dramatically—from under $300 million in 2018 to over $2 billion in 2021—driven by corporate net-zero commitments. Offset credits are verified by independent standards bodies including Verra (VCS/Verified Carbon Standard), Gold Standard, American Carbon Registry, and Climate Action Reserve, which establish methodologies for measurement, reporting, and verification (MRV) of emission reductions.

Offsetting has played a significant role in enabling early corporate climate action before abatement technologies matured across hard-to-decarbonize sectors. However, its credibility has been substantially undermined by high-profile controversies. A 2023 investigation by The Guardian and Zeit Online found that over 90% of Verra’s REDD+ rainforest offset credits may have significantly overstated their actual emission reductions. A 2022 study in Science found that California’s forest offset program systematically overcredited carbon storage due to flawed baseline methodologies. These findings have accelerated a fundamental rethinking of how companies should use offsets in their net-zero strategies.

Defining Carbon Insetting: Value Chain-Integrated Climate Action

Carbon insetting refers to climate and nature-positive investments made within a company’s own supply chain or value chain—typically involving the primary producers (farmers, foresters, fishers) who supply the raw materials from which the company’s products are made. Rather than purchasing emission reductions from unrelated third parties, insetting companies invest in transforming the practices of their own suppliers, achieving emission reductions or carbon removals that directly reduce the company’s Scope 3 upstream emissions while generating co-benefits including supplier livelihoods, ecosystem restoration, and supply chain resilience.

Insetting programs span a wide range of activities: agroforestry development with smallholder farmers (cocoa, coffee, tea), regenerative agriculture transition support (grain, livestock, cotton), sustainable forest management programs (paper, wood products, palm oil), improved cookstoves distributed to bioenergy feedstock suppliers, and mangrove restoration projects in coastal aquaculture supply chains. The defining characteristic is that the investment is made by the company in its own suppliers’ practices—not in an unrelated project elsewhere in the world.

How Insetting and Offsetting Treat Scope 3 Emissions Differently

The most consequential distinction between insetting and offsetting lies in how each affects a company’s Scope 3 emissions inventory and net-zero pathway credibility.

Offsetting does not reduce Scope 3 emissions. Under the GHG Protocol Scope 3 Standard and the SBTi Corporate Net-Zero Standard, purchasing carbon offsets from projects outside the value chain does not reduce a company’s reported Scope 3 emissions. Offsets may be used to claim “carbon neutrality” or “net-zero” for residual emissions after maximum feasible abatement, but they cannot substitute for actual supply chain emission reductions in the interim. Companies that claim Scope 3 reductions through offset purchases are making misrepresentative climate claims that are increasingly scrutinized under green claims legislation in the EU and UK.

Insetting directly reduces Scope 3 emissions. When a company invests in regenerative agriculture practices among its grain suppliers—converting conventional tillage to no-till with cover crops—and verifies the resulting emission reductions through a recognized methodology, those reductions directly reduce the company’s Category 1 (purchased goods and services) Scope 3 emissions. This means insetting delivers both climate impact and improved disclosure compliance simultaneously.

Under CSRD’s European Sustainability Reporting Standards (ESRS E1), companies must disclose their GHG reduction targets and actual performance separately from any offset purchases, explicitly distinguishing “carbon credits” from “emission reductions.” This requirement makes the insetting/offsetting distinction a mandatory disclosure consideration for any company subject to CSRD—which will eventually encompass most large companies operating in or selling into the EU market.

Industry Applications: Where Insetting Creates the Most Value

Carbon insetting has gained traction fastest in industries with large agricultural or forestry Scope 3 footprints, where the supply base consists of dispersed smallholder farmers or forestry operations whose practices have enormous land-use change and soil carbon implications.

Food and beverage companies including Nestlé, Unilever, Barry Callebaut, and Olam have developed insetting programs with cocoa, coffee, dairy, and grain suppliers. Nestlé’s Cocoa & Forests Initiative partners with cocoa farmers in Ghana and Côte d’Ivoire on agroforestry planting, with the dual goal of reducing deforestation (a major Scope 3 source) and improving farmer incomes and resilience. Barry Callebaut’s Forever Chocolate program targets cocoa supply chain decarbonization through regenerative agriculture and reforestation insetting alongside conventional carbon offsetting.

Fashion and apparel brands face enormous Scope 3 footprints from cotton, wool, and leather production. Insetting programs focused on regenerative cotton farming (no-till, cover crops, reduced synthetic nitrogen) and pasture-based livestock management can simultaneously address Scope 3 Category 1 emissions and meet the supply chain deforestation due diligence requirements of the EU Deforestation Regulation (EUDR).

Paper, packaging, and timber companies with certified forestry supply chains can develop insetting programs that improve carbon stocks in managed forests beyond FSC or PEFC baseline requirements, generating verified removals that reduce net Scope 3 land-use-change emissions while supporting supplier certification costs and conservation co-benefits.

Voluntary Carbon Market Reform: The Integrity Council and Core Carbon Principles

Both insetting and offsetting operate in the voluntary carbon market ecosystem, and both have been significantly affected by the credibility crisis that has gripped that market since 2022. The Integrity Council for the Voluntary Carbon Market (ICVCM)—an independent governance body established by the Taskforce on Scaling Voluntary Carbon Markets—has developed Core Carbon Principles (CCPs) that set a high-integrity threshold for offset and inset credits that claim to represent real, additional, permanent, and verifiable carbon reductions or removals.

The CCP framework requires: robust additionality demonstration (the emission reduction would not have occurred without carbon market finance); conservative and transparent quantification; robust permanence provisions for removal-based credits; independent third-party verification; and provisions for host country and local community rights. Credits meeting CCP requirements are designated “CCP-eligible” and expected to command premium pricing and greater buyer confidence. For insetting programs, the CCP framework provides a credible verification pathway that allows companies to generate and potentially sell or retire inset credits under recognized standards.

Strategic Framework: Choosing Between Insetting, Offsetting, or Both

Companies developing supply chain decarbonization strategies benefit from a clear decision framework that matches the right tool to each emissions category and timeline.

Insetting is the preferred approach when: the company has significant Scope 3 Category 1 or 11 emissions in agricultural or forestry supply chains; supplier engagement and long-term procurement relationships are well-established; the company has the capacity to invest in multi-year supplier support programs; and where credible Scope 3 reduction—not just compensation—is the goal. The SBTi FLAG (Forest, Land and Agriculture) guidance explicitly requires companies in food, beverage, tobacco, and apparel to set land-based emission reduction targets through supply chain intervention, making insetting effectively mandatory for SBTi FLAG compliance.

Offsetting remains appropriate for residual emissions after maximum feasible abatement has been achieved; for emissions in categories where supply chain intervention is not technically or commercially feasible; and as a transitional tool for short-term net-zero claims while long-term Scope 3 decarbonization programs are scaled. However, offsets used for net-zero claims must meet increasingly stringent quality thresholds—with most credible frameworks now requiring removal-based credits (rather than avoidance) for residual emission compensation.

An integrated portfolio approach combines near-term insetting investments in highest-impact Scope 3 categories with transitional high-quality offset purchases for residual emissions, governed by a credible Scope 3 reduction trajectory consistent with a 1.5°C pathway. As insetting programs mature and scale, the offset component should decline, with the company’s net-zero strategy increasingly rooted in actual value chain transformation rather than compensation through external markets.

The insetting/offsetting distinction will only grow in importance as climate disclosure regulation tightens globally. Companies that have invested in genuine supply chain decarbonization through insetting programs will find themselves ahead of the regulatory curve—with the data, verified reductions, and supplier relationships that credible net-zero reporting requires. Those that have relied primarily on offset purchases will face an increasingly difficult reckoning with mandatory disclosure requirements that expose compensation strategies lacking underlying emission reductions.