As a leading Not for Profit, we exist to enable the transition to a prosperous net zero economy
We are committed to enabling an ESG-aware net zero transition. We support you to measure, reduce and rebalance greenhouse gas emissions, helping organisations to achieve Science Based Targets (SBT), whilst simultaneously driving social and environmental impact.
.png)
Who we are
One Carbon World is a not-for-profit organisation and an official observer organisation to the United Nations Framework Convention on Climate Change (UNFCCC). We are a proud member of the UN Global Compact Network UK and are registered in the UK, supporting climate action in over 55 countries.
We provide expert advice and support to organisations of all sizes in measuring, reducing, and rebalancing greenhouse gas emissions as they transition to net zero. In addition to our internationally recognised work in carbon footprint assessment, we are leaders in developing and validating high-quality carbon removal projects, with a strong emphasis on nature-based solutions.
Our work spans carbon project creation, verification, and the delivery of solutions that help organisations achieve ambitious climate goals. We are committed to driving innovation in carbon removals and have been recognised by the European Commission as Key Innovators in the field. In recognition of our impactful approach to sustainability and net-zero leadership, we were awarded the Climate Positive Award by Green Cross UK.
At One Carbon World, we are dedicated to accelerating the global transition to net zero through practical, science-based climate action
Our Values
Integrity
Taking Responsibility
Kindness
Supportive
.svg)
One Carbon World and UK Retail
One Carbon World is proud to be the carbon removal technical partner to the British Retail Consortium (BRC) — the UK’s leading trade association representing over 200 major retail businesses. Together, we are advancing climate ambition and bringing clarity to the carbon landscape through strategic collaboration.
As Chair of the BRC’s Carbon Removals Taskforce, Faye O’Connor, our Vice President of Nature Based Solutions, plays a pivotal role in guiding the industry’s understanding and uptake of high-integrity carbon removals. The Taskforce is establishing a clear, actionable roadmap for retailers and supply chains, ensuring that removals are not only credible and measurable, but also aligned with science-based expertise.
The Consortium is galvanising the retail sector to reach net zero emissions by 2040. With One Carbon World’s support, BRC members are equipped with the tools and insights needed to decarbonise with integrity, transparency, and impact — helping retailers navigate the evolving environmental landscape while operating competitively, ethically, and sustainably.
Do you need a technical partner for your organisation? Is your sector’s voice being heard in climate action efforts? Get in touch with us today!
OCW International Leadership
Impact Stories
Frequently asked questions
Find answers to commonly asked questions about our services and initiatives.
Each organisation has a unique and different carbon footprint. That is why One Carbon World and its team of technical experts can now report on over 7000 calculations. Our team will guide you through this process and will help you to measure your Scope 1, 2 and 3 emissions. We first invite you to select a date and time for a phone consultation with your dedicated technical expert. During the technical call, our expert will explain the emissions sources that we will include and the methodologies we will apply. We will guide you through the data collection procedure and also review any data you have already collected, if applicable. We always attach a guide for data collection for reference. If you have made a self-assessment of your carbon footprint we will talk you through the OCW UN approved verification process. Once we receive your data, our experienced team of carbon auditors will calculate your carbon footprint, and this will be sent for independent external validation.
At the global level, the IPCC defines net-zero as the point at which “anthropogenic emissions of greenhouse gases to the atmosphere are balanced by anthropogenic removals over a specified period”. Achieving net-zero is a strategic approach focused on minimising the net environmental impact, ensuring that global emissions are reduced and rebalanced through initiatives like investing in renewable energy projects or adopting nature-based solutions.
What does it mean to reach net-zero emissions at the corporate level?
To reach a state of net-zero emissions for companies consistent with achieving net-zero emissions at the global level in line with societal climate and sustainability goals implies two conditions:
1. To achieve a scale of value-chain emission reductions consistent with the depth of abatement achieved in pathways that limit warming to 1.5°C with no or limited overshoot and;
2. To neutralise the impact of any source of residual emissions that remains unfeasible to be eliminated by permanently removing an equivalent amount of atmospheric carbon dioxide.
Companies may reach a balance between emissions and removals before they reach the depth of decarbonisation required to limit warming to 1.5ºC. While this represents a transient state of net-zero emissions, it is expected that companies will continue their decarbonisation journey until reaching a level of abatement that is consistent with 1.5ºC pathways. IPCC & SBTi
Every organisation that measures/verifies its emissions with One Carbon World, achieves the Carbon Neutral International Standard or the Net Zero International Standard. Our recognised Carbon Neutral International Standard and Net Zero International Standard are based on a series of steps, and we provide comprehensive support, robust certification and verification, and first-class assessment. There are a set of minimum requirements to achieve the Standard, but we also encourage our partners to adopt best practices where possible, in order to achieve recognition and market-leading status. This means that your organisation will be measuring your emissions to the highest standards of the industry, in line with the Kyoto Protocol and the Greenhouse Gas Protocol, as well as meeting the reporting requirements of the GHG Protocol Corporate Standard and compatible with international standards ISO 14064 and PAS 2060.
To apply to the OCW Grant Fund, you can click the "Get Started" at the top of our page or simply send us an email at hello@onecarbonworld.com. Our team will guide you through the application process, providing support and assistance as needed. We are committed to facilitating your efforts in contributing to meaningful carbon reduction and projects through our Grant Fund.
The carbon footprint is quantified in tonnes of CO2e, and visualising this amount can provide context. Consider the following examples:
- 120,000 smartphone charges.
- Heating an average-sized apartment for two months.
- 72 trips Amsterdam to Paris with the Thalys.
- The amount of CO2 absorbed by a beech tree during around 80 years of growth.
- If one tonne of CO2 were compressed into a gaseous state, the resulting cube would have edges measuring eight metres under normal conditions