For years, “carbon offsetting” has been one of the most used, and misused, phrases in sustainability. It’s been called everything from a “get out of jail free card” to “the only realistic bridge to net zero.”

The truth lies somewhere in between. 

Offsets can play a vital role in any credible climate strategy, but only if they’re done right; with science, transparency, and accountability. 

At NCZ, we’ve seen both the best and worst examples of offsetting in practice. 

This guide aims to help businesses separate the credible from the questionable, and understand how offsets can support (not replace) real decarbonisation. 

Why Offsetting Exists, and What It’s Really For

Offsetting allows businesses to compensate for the emissions they cannot yet avoid or eliminate by funding verified carbon reduction or removal projects elsewhere. 

For example, a company might offset business travel emissions by investing in renewable energy, reforestation, or carbon capture projects.
When done correctly, these offsets can: 

• Accelerate global emission reductions 

• Support sustainable development in other regions 

• Provide a bridge toward net zero while technology and operations evolve 

But when done poorly, they can undermine credibility and trust. Cheap, low-quality, or double-counted credits can make progress appear greater than it is, and in the worst cases, fuel accusations of greenwashing. 

Avoidance vs. Removal: Knowing the Difference

One of the most common misconceptions in carbon offsetting is that all credits are equal.
They are not. 

There are two main types of offsets: 

1. Avoidance Offsets 

These prevent emissions that would otherwise have occurred.
Examples include: 

• Funding renewable energy projects instead of fossil fuel ones 

• Protecting forests from being cut down 

• Distributing efficient cookstoves that reduce wood burning 

Avoidance offsets have historically been the most common, but they can be difficult to verify because you’re measuring emissions that didn’t happen. 

2. Removal Offsets 

These physically remove CO₂ from the atmosphere.
Examples include: 

• Reforestation or afforestation 

• Soil carbon sequestration 

• Direct air capture and storage 

Removal offsets are considered more robust because they deal with existing emissions, not just avoided ones.
Under new international standards like ISO 14068-1 and Science Based Targets initiative (SBTi) guidance, true net zero can only be claimed once at least 90% of emissions are reduced, and residual emissions (no more than 10%) are neutralised through offsets, With a preference for removal-based offsets. 

In short: avoidance helps now, but removal defines net zero later. 

What Makes a Carbon Credit Credible?

A credible carbon credit isn’t just a certificate; it’s evidence of real, verifiable impact. 

When choosing offsets, every business should assess the following criteria: 

1. Additionality 

Would this project have happened without your funding?
If it would have occurred anyway (due to regulation or market demand), then it’s not additional and your money isn’t truly offsetting anything. 

2. Permanence 

Will the carbon savings last? 

For example, planting trees can sequester carbon, but if those trees are later cut down or burned, the benefit is reversed. Permanent removal requires long-term guarantees and monitoring. 

3. Verification 

Are the project’s claims independently verified by recognised standards such as: 

• Gold Standard 

• Verified Carbon Standard (VCS) 

• UN Clean Development Mechanism (CDM) 

• UK Woodland Carbon Code or Peatland Code 

Verification ensures that the carbon reductions are measurable, monitored, and publicly documented. 

4. Avoiding Double Counting 

Each tonne of CO₂e should only be claimed once. If two entities (for example, a host country and a company) both claim the same offset, the atmosphere sees no real benefit.  That’s why transparent registries are essential. 

Common Greenwashing Traps 

Offsetting becomes greenwashing when it’s used as a substitute for meaningful reduction, or when the credits themselves are of low integrity.
Here are some of the most common pitfalls: 

1. “Offset Now, Reduce Later” 

Some businesses buy offsets to appear carbon neutral while delaying decarbonisation.
This creates the illusion of progress but locks in long-term emissions. 

2. Cheap or Unverified Credits 

Low-cost credits are often too good to be true.
If a credit is too cheap, it likely hasn’t gone through proper verification or permanence testing. 

3. Lack of Transparency 

If a company cannot disclose what projects they fund, where they are located, or how they are verified, it’s a red flag. 

4. Ignoring Scope 3 

Offsetting only operational emissions (Scopes 1 and 2) while ignoring supply chain emissions (Scope 3) gives an incomplete picture and weakens credibility. 

Aligning Offsetting with ISO 14068-1 and SBTi 

In 2023, ISO 14068-1 established a clear international standard for what constitutes a verified net zero claim. It defines net zero as a state achieved only after reducing emissions by at least 90%, and offsetting no more than 10% of residual, unavoidable emissions using removal-based offsets. 

Similarly, the Science Based Targets initiative (SBTi) provides guidance that offsets should complement, not substitute, decarbonisation. 

Offsets can support climate finance and global sustainability but they do not count toward emission reduction targets. 

In other words: 

• Offsetting ≠ Reducing 

• Reduction must come first 

• Offsets are the last 10% at the end 

At NCZ, we help clients integrate these principles into their carbon strategy so their offsets serve as credible enhancements, not as compensation for inaction. 

When and How Offsets Should Complement Real Reductions 

Offsets are a vital part of the transition but they should only come after you’ve done everything possible to reduce your emissions at the source. 

Here’s how to integrate offsets responsibly: 

1. Measure and Reduce First 

Start by measuring your carbon footprint comprehensively (Scopes 1, 2, and 3).
Prioritise efficiency improvements, renewable energy, and supplier engagement before turning to offsets. 

2. Offset Residual Emissions Annually 

Even as you reduce, there will always be unavoidable emissions, such as from air travel, raw materials, or essential logistics.

Offset those residuals annually to maintain accountability and support verified climate action. 

3. Invest in High-Impact Projects 

Choose offsets that align with your corporate values or supply chain geography.
For example, a construction company might fund reforestation in regions where it sources materials. 

4. Communicate Transparently 

Publish your offset details: the projects, verification bodies, and tonnes of CO₂e covered.
Transparency builds trust with clients, employees, and investors. 

NCZ’s Role in Credible Offsetting 

At Neutral Carbon Zone, we don’t just certify that your offsets exist, we ensure they align with science, standards, and long-term credibility. 

Our approach to offsetting integrates directly with our certification framework: 

• Blue Award: Initial measurement and awareness 

• Silver Award: Emissions reduction plan in progress 

• Gold Certification: Verified reductions and offsetting residual emissions 

• Platinum Certification: Demonstrated, science-aligned net zero achievement 

Through each tier, we verify that offsets are complementary to reductions, never a replacement.
We assess additionality, permanence, verification, and transparency—ensuring that your offset investments stand up to scrutiny. 

The Future of Offsetting: From Compensation to Contribution 

The conversation is shifting.
Offsetting used to mean “compensating” for emissions.
Now, the focus is on contributing to global climate progress. 

High-quality offsets, especially those that support community development, biodiversity, and innovation, allow businesses to play an active role in the global transition to net zero.
It’s not about paying to erase guilt. It’s about investing in a future that benefits both people and the planet. 

At NCZ, we believe that when offsetting is done right, it’s not a buzzword, it’s a benchmark for responsible leadership. 

Ready to Take the Next Step? 

Let’s make your offsets credible, measurable, and meaningful. 
Start by verifying your emissions, setting science-based targets, and ensuring that every credit you purchase truly counts. 

👉 Get Started with NCZ