Our Impact Portfolio
Explore the verified carbon offset projects we support, organized by their Oxford Methodology classification.
Oxford Type 1
Technology-based reductions
60%
Oxford Type 2
Nature-based reductions
29%
Oxford Type 4
Nature-based removals
10%
Oxford Type 5
Technology-based removals
1%
What is the Oxford Methodology?
The Oxford Offsetting Principles, developed by the University of Oxford, are a science-based framework for responsible carbon offsetting. They prioritise emission reductions, conservation, and a long-term shift towards durable carbon removal — guiding how companies and individuals should choose and use carbon credits over time.
Read our full guide to the Oxford PrinciplesWhere the projects are
Each point is a project in the portfolio, coloured by its Oxford type. Pick one to see where it is, or choose a type below.
Project locations from CNaught · 16 of 22 projects are on the map; the rest are in the list below.
Oxford Type 1
Emissions Reductions
Projects that use technology to stop greenhouse gases from being released, such as capturing landfill gas, repairing gas leaks or destroying ozone-depleting gases.
- Why it's in the mix
- They stop potent gases right where they would escape. The avoided emissions usually can't be reversed and are often easy to measure.
- Main risks
- Additionality: some projects, such as some renewable energy, would run without the money from credits. There is also a risk of overestimating how much would have been emitted without the project. CNaught favours projects with clear, transparent measurements.
Fuzhou Hongmiaoling Landfill Gas
China · VCS
Converts landfill gas into clean electricity, reducing methane emissions from the Hongmiaoling waste site in Fuzhou, Fujian Province.
Istanbul Landfill Gas to Electricity
Turkey · Gold Standard
One of the world's largest landfill gas projects, converting methane from waste into clean electricity for hundreds of thousands of homes.
Titas Gas Leak Repair
Bangladesh · VCS
Reduces methane emissions, improves safety, and modernizes urban energy networks in Bangladesh.
Oeste de Caucaia Landfill
Brazil · VCS
Captures methane, produces biomethane, and supports climate action in Ceará, Brazil.
Gaziantep Landfill Gas
Turkey · Gold Standard
Captures methane and generates renewable electricity in one of Turkey's largest cities.
Liling Landfill Gas
China · VCS
Captures methane and generates renewable electricity for local communities in Hunan Province.