Carbon Offsetting vs Carbon Insetting: Key Differences Explained

As companies sharpen their climate strategies, two approaches dominate the conversation: carbon offsetting vs carbon insetting. While both aim to reduce greenhouse gas emissions, they operate through fundamentally different mechanisms. Understanding these differences is essential for building credible, long-term decarbonization strategies.

Carbon offsetting involves purchasing credits from external projects that reduce or remove emissions elsewhere, such as renewable energy installations or reforestation initiatives. Carbon insetting, by contrast, focuses on reducing emissions directly within a company's own value chain through investments in suppliers, operations, or sourcing practices.

The choice between offsetting and insetting is not binary. Most organizations use both as complementary tools, but the balance matters significantly for credibility, impact, and alignment with climate goals.

What is Carbon Offsetting?

Carbon offsetting allows companies to compensate for emissions by funding projects outside their operations. Each carbon credit typically represents the avoidance or removal of one tonne of carbon dioxide or equivalent greenhouse gas. These projects can include forestry conservation, renewable energy deployment, methane capture, or direct air capture technologies.

Offsets are most commonly used to address Scope 1 and 2 emissions (direct emissions and purchased energy) as well as residual Scope 3 emissions that cannot yet be eliminated through operational changes. Companies purchase credits from project developers through registries like Verra, Gold Standard, or the American Carbon Registry.

Offsets give companies the opportunity to diversify their climate investments across an entire portfolio of projects, enabling participation in forestry, renewable energy, or emerging carbon removal technologies. For organizations where internal reductions are impractical, such as software companies with minimal supply chain emissions, offsetting provides a path to immediate climate impact.

However, offset credibility hinges on project quality. Poorly vetted offsets can undermine credibility and delay actual decarbonization. Buyers should prioritize credits that demonstrate additionality (the project would not have happened without carbon finance), permanence (carbon benefits are protected from reversal), and independent verification by accredited third-party auditors.

What is Carbon Insetting?

Carbon insetting directs investment into emission reductions within a company's own value chain. Whereas offsetting allows a company to purchase carbon credits from a project they don't own or operate, insetting involves funding your own carbon avoidance or carbon removal projects, without transacting on a carbon market.

Insetting focuses on Scope 3 emissions, which often include the indirect emissions generated across a company's supply chain, from purchased goods and services to product end-of-life. These emissions typically represent the largest share of a corporate carbon footprint. For many organizations, Scope 3 emissions account for 75% of overall emissions on average.

Common insetting activities include working with suppliers to transition to renewable energy, investing in regenerative agriculture within sourcing landscapes, improving logistics efficiency through electric vehicle fleets, or redesigning packaging to reduce embodied carbon. Nestlé, for example, invests in agroforestry and regenerative practices within its coffee sourcing regions. LVMH partners with suppliers to redesign packaging and reduce logistics-related emissions.

Insetting allows companies to reduce emissions where they have direct operational or financial control and supports long-term supply chain resilience. Beyond carbon, insetting delivers co-benefits like biodiversity protection, improved livelihoods for local communities, and more secure sourcing.

Key Differences: Carbon Offsetting vs Insetting

The primary distinction lies in location and control. Offsetting involves external projects which are not directly related to a company's operations, whereas insetting focuses on improvements directly related to the company's products and services.

Scope of emissions: Offsetting typically addresses Scope 1, 2, and residual Scope 3 emissions. Insetting specifically targets Scope 3 supply chain emissions.

Ownership: Offset projects are external and managed by third parties. Inset projects are owned or directly influenced by the company.

Crediting: Offsetting generates tradable carbon credits. Insetting projects typically do not generate credits but result in direct footprint reductions.

Impact verification: Both require rigorous measurement. Leading organizations treat insets with the same level of scrutiny as offsets, using clear criteria such as additionality, permanence, and carbon accounting linked to reliable data and realistic baseline scenarios.

Strategic alignment: Insetting initiatives often lead to more sustainable supply chain practices, encouraging suppliers to adopt greener practices which can lead to a ripple effect of sustainability improvements across the industry.

Offsetting vs Insetting: Which Approach is Right for Your Strategy?

There is a place for both insetting and offsetting carbon emissions, and fundamentally utilizing a combination of both is best for helping reach net zero. The optimal mix depends on your organization's emissions profile, supply chain complexity, and decarbonization timeline.

Organizations should prioritize insetting for supply chain emissions where they have influence and where reductions deliver operational benefits. Offsetting becomes essential for emissions that cannot yet be eliminated, residual emissions after deep decarbonization, or for organizations with minimal Scope 3 exposure.

While an important tool, offsetting cannot be considered as a substitute for direct emissions reductions by corporates, for which insetting is instrumental. Credible climate strategies require both: insetting to drive structural change within operations and offsetting to address unavoidable emissions while those structural changes scale.

For companies pursuing science-based targets, integrating both approaches ensures compliance with frameworks that demand aggressive value chain engagement while providing a pathway to neutralize residual emissions. The key is transparency: disclose what emissions are being reduced internally versus compensated externally, and ensure both mechanisms meet rigorous integrity standards.