Collaboration, not competition, will solve this climate crisis.

We founded the Carbon Accounting Alliance as a place for alignment and collaboration in the carbon accounting industry. In the ethos of “collaboration over competition” we believe that our industry working together is critical for us to collectively solve the climate crisis.

Currently, there isn’t a recognised industry association to facilitate conversations between organisations and individuals measuring and reporting on GHG emissions. Despite important strides forward in standardising approaches for measuring GHG emissions, we recognise that the GHG Protocol, ISO and PAS Standards still leave lots of room for interpretation when it comes to certain methodologies, rules and emission factor database choices.   

The Alliance shares challenges and learnings in an open, vulnerable forum, so we can all move faster with collective intelligence.

We identify common barriers affecting carbon accounting and leverage our collective voice to drive policy change that can remove barriers to measurement and maximise opportunities for industry.   

We embody values of respect and openness to help accelerate the transition to a fairer, kinder and regenerative world.  

Our objectives

  • To develop practical guidance and consistent interpretation of the standards. The output will be a dynamic online wiki which includes relevant output from working groups.

  • To develop and drive adoption of the first professional qualification for carbon accounting in collaboration with industry bodies.

  • To ensure policy & standards development is ambitious, fit for purpose and considers the industry's point of view.

Founding members

Andrew and Emilien got talking in 2022 about how the carbon accounting industry should be doing more together. We kept on telling our clients to collaborate more with their industry. Founding the CAA is our way to “walk the talk” and lead by example.


  • Co-Founder of the CAA

    Director of Policy & Partnerships at PlanetMark and Chair IoD National Sustainability Taskforce.


  • Co-Founder of the CAA

    Managing Director, UK at ClimatePartner.