Guide to Carbon Offsets

, 15 minute read

Quick summary: There is a climate emergency now and incremental steps to address GHG emissions are not enough. Companies need to adopt every strategy to achieve emission reduction goals and Carbon Offsets is one such tool, if used responsibly can accelerate your journey to net zero. While carbon offsets refer to the projects and activities that reduce CO2 in the atmosphere, carbon credits represent a specific unit, one metric tonne of carbon dioxide removed from the atmosphere

TraceX provides a comprehensive suite of tools & resources designed to help companies track, measure, & reduce their greenhouse gas emissions

Are you concerned about the impact of your company’s operations on the environment? Do you want to take action to address the climate crisis and make a positive impact on the planet?

Climate change is having a non-linear growth over a few years leading to a significant impact on the planet. Rising temperatures, floods, droughts and extremities in weather conditions are disrupting food production and supply chains leading to food insecurity with less resilience to ecological changes. A solution to combat inescapable emissions are Carbon Offsets. Yes! A green way ahead.

However, understanding carbon offsets can be a complex and confusing process. In this blog post, we will provide a clear and concise explanation on what carbon offsets are, how do they work, what are carbon markets, what are the qualities of a good carbon offset, what are the verification standards and the offset registries and finally how technology solutions help the carbon offset market. 

Carbon Offsets are a tool for businesses that have made commitments to reach net-zero emissions or are working to reduce their emissions. 

What are Carbon Offsets? 

Carbon offsets are reductions of greenhouse gas emissions or increase carbon storage via afforestation or land restoration that a company can use to offset emissions created in other locations. 

Also referred sometimes as carbon credit, one offset credit is worth the equivalent of one metric ton of carbon dioxide or other GHG. 

Offsets provide benefit to climate change regardless of location. Whether the emissions are being reduced at one location or helping to facilitate carbon emissions reducing project elsewhere, the impact on the planet is the same.  Companies can by paying someone else to reduce their emissions or reduce carbon can compensate for their environmental footprint and use carbon credits to achieve carbon neutrality.

What is the difference between Carbon Offset and Carbon Credit? 

Though used interchangeably, there is a subtle difference between an offset and a credit. While carbon offsets refer to the projects and activities that reduce CO2 in the atmosphere, carbon credits represent a specific unit, one metric tonne of carbon dioxide removed from the atmosphere. A unit like this makes carbon credits transferable ie. One organization can sell the unit to another organization to compensate for the GHG the company emits. This transferable instrument certified by governments or independent certified bodies represent an emission reduction of one metric tonne of CO2 or an equivalent amount of other GHGs. The purchaser of the offset credit needs to retire the credit to claim the reduction towards their GHG reduction goals. 

This paves way for carbon markets that facilitate trading of carbon credits, denominated in USD per tonne of Co2.They help organizations to meet their net zero commitments and helping to fund projects that can reduce, avoid or remove carbon emissions from the atmosphere. 

The Need for Carbon Offsets 

The world needs to reduce emissions in order to meet the Paris agreement thresholds of 1.5˚C. The path to net zero by 2050 is possible only if global emissions are halved by 2030. By 2050, CO2 emissions will need to reach ‘net zero’ where emissions are in balance with removals to sustain a chance of avoiding effects of climate change. One third of the cost-effective emission reductions required can be met with Nature Climate Solutions which aims to protect, restore and manage forests, soils and wetlands. Nature Climate Solutions refer to the conservation, restoration and improved land management that increases carbon storage and avoids greenhouse gas emissions. Avoiding deforestation, sequestering emissions and restoring peatlands are few of the climate mitigation pathways to reduce emissions.  

There is a climate emergency now and incremental steps to address GHG emissions are not enough. Companies need to adopt every strategy to achieve emission reduction goals and Carbon Offsets is one such tool, if used responsibly can accelerate your journey to net zero. 

How do Carbon Offsets lifecycle work? 

A carbon offset starts its life with reduction in emission and not all reductions qualify as an offset. It needs to meet a specific quality criterion based on the methodology used related to the kind of carbon project like energy, forests, livestock wherever reduction take place. Methodologies help to quantify the impact of carbon reduction. 

In 1992, the Kyoto Protocol outlined the first offset provision under the Clean Development Mechanism (CDM) which allowed companies to offset their emissions by investing in environment positive projects. This led to the establishment of “Compliance Markets” for carbon credits. 

These methodologies are complex as carbon projects differ with a number of variables that need to be accounted for along with accuracy. There is a need to evaluate the impact using the methodology after which a project can be developed.  These developers apply standards to review the project against the methodology which involves gathering scientific data that needs to be validated. Using the methodologies, the project activities are outlined, and a baseline is established for reduction of emissions. These efforts then need to be reviewed and certified by an independent third-party validator who acts on behalf of the standard. All offset programs requires a third party auditor to validate a project’s baseline and the projected and achieved emission reductions.

VNV advisory was able to use our DMRV tool to track, measure, and verify their carbon emissions reductions in their rice cultivation projects.

Our innovative software platform allows you to analyze your project data in real-time, identifying areas where you can make meaningful changes to improve your environmental performance and generate more offsets.

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Once a project is validated, it is ready to be officially registered and approved with a carbon offset program. It is now ready to start generating carbon offsets. 

Verification is a key in these projects. Firstly they need to meet the program’s eligibility criteria and secondly validate that data was collected in accordance with the program requirements and the calculations were estimated according to approved methodology and protocol. Projects are verified to ensure integrity and quality of data and there is transparency and accountability in the carbon market. 

As these offsets travel through the journey of methods, validation and verification it enters the next phase of trading ie . buying and selling of offsets. This is where Carbon markets come into play. 

What are Carbon offsets Markets? 

Carbon Offset markets also referred to as Emissions Trading or Carbon Trading markets, form a crucial part of worldwide initiatives aimed at combating climate change and curbing greenhouse gas emissions. These markets function on the premise that entities, be it businesses, industries, or individuals, can offset their own emissions by participating in projects that either reduce or eliminate a commensurate volume of emissions from the environment. 

There are two kinds of Carbon Credit markets.

  • Compliance Market 
  • Voluntary Market 

Countries and governments that have adopted the emission limits established by the Kyoto protocol and the UNFCC have to legally offset their emissions via a Compliance market. This is a mandatory market and are regulated by national, regional or international carbon reduction organizations.  The voluntary carbon market on the other hand allows businesses, organizations and individuals to offset their unavoidable emissions by voluntarily purchasing carbon credits by projects targeted at reduction or removal of GHGs. The voluntary market has multiple standards in place which are limited to different types of projects, different locations and are not regulatory in nature. 

How are Carbon Offsets Verified? 

Trading of Carbon offsets mandates its verification, and this is done by third party standards like the Verified Carbon Standard (Verra), Climate Action Reserve (CAR) or the American Carbon Registry (ACR). The verification process evaluates the calculations of the actual avoided or contained GHG emissions to determine the integrity of the credit. The verification process takes three to six months depending on the complexity of the project and the company.

Don’t overlook the importance of Carbon Offset Verification! In a world committed to combating climate change, verifying and validating offset projects is essential.

Know more »

What qualifies as a good quality offset? 

While trading offsets, the offset needs to be verified as a high-quality carbon offset. The issuance of this credit should make a positive impact on the world than if you offset that much GHG emissions yourself. 

The Quality has two aspects :

  • The offset should represent at least one metric tonne of additional, permanent and otherwise unclaimed Co2 emission reduction or removal. 
  • The offset should come from activities that do not contribute to social or environmental harms. 


If the GHG reductions would have happened anyway ie. In the absence of a market for offset credits, then they are not additional. Additionality is essential for the quality of carbon offset credits. In case the associated GHG reductions are not additional, then purchasing offset credits in lieu of reducing your own emissions will worsen the climate change. 

Not Overestimated 

Overestimation occurs due to overestimating baseline emissions or underestimating actual emissions. Baseline emissions are the reference against which GHG reductions are calculated and are closely ties to additionality. Baselines are easier to determine for some projects and some are uncertain. While a project that captures methane from landfill and destroys it, the amount of methane emitted is generally equal to the amount that is captured and destroyed. Whereas there can be uncertainty in estimating how much GHG emissions will be displaced on an electricity grid by a solar power project leading to overestimation. 

Many kinds of carbon offset projects reduce but do not eliminate GHG emissions. A project will have both intended and unintended effects on GHG emissions. If quantification methods fail to account for GHG emission increases caused at some sources indirectly, then net GHG reductions will be overestimated. 


The effects of CO2 emissions are very long lived. Most of the carbon in a tonne of CO2 removed will be removed from atmosphere, however around 25% remains in the atmosphere for thousands of years. To compensate for this, the offset credits must be associated with GHG reductions that are similarly permanent. It no longer serves as a compensatory measure if the GHG reduction is reversed. 

Double Counting 

Carbon offset credits must be an exclusive claim to GHG reductions. If two different companies were to claim the same 100 tonnes worth of CO2 reductions, they would claim 200 tonnes as a total, but the actual reduction would be just 100 tonnes. This double counting occurs if more than one offset credit is issued for the same GHG reduction. An example would be if both the producer and consumer of biofuels claim GHG reductions associated using same litres of fuel and an offset is issued to both in spite of the overlap. 

Double counting occurs also if two different parties count the same offset credit towards their GHG reduction claims. Double claiming can also happen if offset credits are issued to a project but another entity like government or a company may count the same GHG reduction towards its own GHG reduction goal. 

Avoid Social and Environmental harm 

A project should not contribute to social and environmental harm while producing a high-quality offset. The project should comply with all legal requirements in the jurisdiction where it is located. 

Certification of Carbon Credits 

Carbon credit certification is done by third party companies. They apply certain rules to the program to ensure it meets their standards and then the certificate is issued. Once certified, the company can retire the credit to offset its own GHG emissions or trade the credit to other organizations or individuals. The companies that perform carbon credit certification are Verra, Gold Standard and the SCS Global Services 

Carbon Credits cost $3 to $5 per tonne of carbon emissions today, the prices of which are to see a huge rise in the next decade

Carbon Verification 

Every tonne of emissions reduced by an environmental project creates one carbon offset or carbon credit. These reductions are also called the Verified Emission Reductions (VERs) are independently audited against a third-party verification standard. Normally the traditional offset projects include reforestation, forest management, methane gas capture and destruction and fuel switching. Before any GHG reduction can be certified for use as a carbon offset, they must meet certain quality criteria. Carbon offset programs have approved methodologies or protocols that cover project types. 

Carbon offsets Standards

Some of the Verified Emission Reduction Standards in the VCM market are  

  • Verified Carbon Standard (VCS) also known as Verra Standard 
  • Climate Action Reserve (CAR), a US based offset program. 
  • Gold Standard 
  • American Carbon Registry (ACR) 

All credits issued from these major carbon standards would have undergone an in-depth verification process by an accredited third-party verifier. Another part of verification is the Registration on a Carbon Offset registry to ensure an offset is not double counted. 

Standard bodies related to carbon offsetting serve as valuable resources for identifying and accessing registered carbon offset projects. These organizations establish and maintain guidelines, criteria and standards that carbon offset projects must adhere in order to be considered legitimate and effective in reducing greenhouse gas emissions. 

What is a Carbon Offset Registry? 

A Carbon offset Registry is responsible for tracking offset projects and issuing credits for GHG emission reductions or removals. These credits then get converted to credible, fungible commodities. The registries are systems for reporting and tracking offset project information including credits generated, ownership, sale and retirement. A serial number is assigned to each credit for tracking. Once an organization retires a credit ie they use it to offset emissions, the registry retires the serial number to prevent any double counting. 

Few of the registries are the American Carbon Registry, Verra and Markit. 

What are the Carbon Offset Programs and do businesses really need to offset? 

Carbon offsetting projects are available in the areas of renewable energy, biochar, forestry, bio-oil, methane capture, livestock, REDD+ and soils. Companies can reduce their carbon footprints by doing offsets and can also become carbon negative by doing extra offsets to remove the environmental harm. While some companies reduce carbon emissions and offset what they cannot reduce, other companies emit as much and offset it elsewhere through tree planting projects and renewable energy farms. This paves way for Carbon Neutrality. 

Carbon Neutrality goals are growing and are ambitious. The benchmark for a science based GHG reduction target is achieving net zero emissions by 2050. However, it would be tempting to rely on offsets as a primary way of meeting carbon neutrality. In fact, all carbon emissions must cease altogether, the focus should be on reducing GHG emissions directly in line with the global mitigation goals. Organizations need to use offsets only on top of their efforts to reduce emissions to net zero by 2050. 

Reduce what you can, offset what you cannot.

Harness the power of NBS in carbon offsetting! It’s a strategic approach that taps into nature’s potential to combat climate change.

Technology and the Voluntary Carbon Market 

A number of countries want to participate in carbon markets to help them meet their climate change goals. More than two thirds of the countries are planning to use carbon markets to meet their NDCs towards the Paris agreement. Blockchain technology is revolutionizing this carbon sector by ensuring transparency where only one country can claim a particular carbon credit. The key to successfully reducing GHG emissions through carbon markets can be through a digital platform that keeps the verified data secure and ensures that all measurements and reductions are accurately tracked and verified. Referred to as the Monitoring, Reporting and Verification Systems (MRV), these systems with GHG emission and reduction data are linked to national and international registries.  

Blockchain technology provides a solution by monitoring and reporting emission reduction trading, eliminating double counting, improving finance flows and building trust through transparency. 

The TSVCM report projects a growth of $180 billion of the Voluntary carbon market by 2030. Blockchain technology boosts transparency lowers the transaction costs and allows resource transfers and recording of transactions via a secured DLT. The distributed ledger links all the players on a shared platform and enables a transaction record without a third party. The ledgers are immutable and tamper proof assuring a single source of truth for auditing purpose. 

Benefits of Blockchain in carbon markets 

  • Builds Consumer trust by avoiding greenwashing. 
  • Effective tracking of Carbon markets from creation to retirement 
  • Eliminates Double counting. 
  • Streamlines Carbon trading 
  • Facilitates ESG reporting and achieving SDGs. 

Companies today are willing to participate in carbon pilot projects using blockchain technology. TraceX ‘s one stop carbon management platform Trace Carbon helps organizations to accelerate their decarbonization journey and bring transparency in the Voluntary carbon markets. The blockchain based SaaS platform ensures transparency and accuracy in the MRV process of the Carbon Accounting and Carbon Neutrality.

Don’t wait to take action on climate change

Join the growing community of carbon project developers who are using our carbon management solutions to reduce their environmental impact and create a more sustainable future.

Get in touch with our carbon expert. »

Frequently Asked Questions

A carbon offset is a measurable reduction in greenhouse gas emissions that is used to compensate for or offset emissions produced elsewhere.

Carbon offsets is a proactive and responsible approach to address your carbon footprint, support sustainable projects, and contribute to global efforts to combat climate change.

Carbon offset projects undergo a rigorous process of verification and certification to ensure their credibility and effectiveness. The various steps are Project Development, Project Documentation, Verification by third-parties, Emission reduction validation, certification and issuance of carbon offsets and Registry and tracking.

The DMRV tool helps in measuring, monitoring and reporting of the carbon offset project activities, ensuring their credibility, accuracy and effectiveness.
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