Does CO2 offsetting work: a guide for businesses

4 min readLast updated 6 August 2026

Direct answer

Carbon offsetting means paying for a project that captures or avoids CO2 elsewhere, so as to balance out your own emissions. Its effectiveness is contested, because not every project delivers the promised climate benefit. Quality depends on additionality, permanent storage and an honest calculation. Offsetting only makes sense as a final step, after you have first reduced your own emissions.

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Does CO2 offsetting work: scattered information versus Energy Intelligence

Many companies want to make up for their unavoidable emissions and buy offsets to do so. You may know it from a plane ticket or a fuel purchase with the option to pay extra for trees. The promise sounds simple: your emissions here are absorbed again elsewhere. In practice, that promise is hard to guarantee. For a facility manager or business owner who takes sustainability seriously, it is therefore important to know when offsetting really achieves something and when it does not.

  • One credit represents a tonne of CO2 that a project captures or avoids; quality varies widely between projects and standards.
  • Effectiveness hinges on additionality (would the project have gone ahead without your money?), permanent storage and a calculation without overestimation.
  • Under the Dutch regulator ACM's guidance and European law, you may not simply call a product climate neutral on the basis of offsetting.

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How does carbon offsetting work?

With offsetting you pay a project that captures or avoids CO2. Think of tree planting, forest protection or renewable energy in developing countries. One credit usually represents one tonne of CO2. Independent standards try to safeguard quality. In the Netherlands you mainly encounter Gold Standard, Verra or VCS, Plan Vivo and the FairTrade Climate Standard. Besides the climate benefit, they also assess matters such as biodiversity and the involvement of local communities. For some credits the CO2 has already been captured in the past, for others this only happens in the future. Forest projects in particular often rely on future capture, because they cannot start without the income from credits.

  • One credit usually represents a tonne of captured or avoided CO2.
  • Projects range from tree planting and forest protection to renewable energy.
  • Standards such as Gold Standard, Verra or VCS and Plan Vivo safeguard quality.
  • For forest projects the CO2 is often only captured in the future.

Why is its effectiveness contested?

The core of the criticism is that a credit only really counts if several conditions are met. The first is additionality: your money must genuinely have been needed, and the reduction must come on top of existing policy. If the forest was going to be planted anyway, you offset nothing. The second is that the offset emissions are calculated realistically, without overestimation. This is a particular issue for projects that claim avoided deforestation, where it is hard to prove how much forest would have been cut without the project. The third is permanence: the storage must be lasting, whereas a forest can burn down or still be felled. Whether that storage is truly lasting is often difficult to assess.

  • Additionality: without your contribution the project should not have gone ahead.
  • The offset emissions must be calculated realistically, without overestimation.
  • With avoided deforestation the climate benefit is especially hard to prove.
  • Permanence is uncertain: a forest can burn down or still disappear.

What may you still claim, and how do you use offsetting sensibly?

The rules around sustainability claims have been tightened. In its Sustainability Claims Guidance, the Dutch regulator ACM states that vague terms such as climate neutral or CO2 neutral are quickly misleading. You must explain concretely and verifiably what you claim. European law goes further: under the Empowering Consumers for the Green Transition directive you may not call a product neutral or climate friendly purely on the basis of offsetting. Using offsetting sensibly therefore starts with the order of steps. First reduce your own emissions as much as possible, because that delivers guaranteed and measurable benefit. Only then offset the emissions you truly cannot avoid, and choose projects with an independent standard.

  • Avoid vague terms such as climate neutral or CO2 neutral; be concrete and verifiable.
  • A neutral or climate friendly claim based purely on offsetting is no longer allowed.
  • First reduce your emissions; only offset what is unavoidable.
  • Choose projects with an independent standard and check additionality.

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