Ryan serves as Senior Technical Manager, Climate Action Planning (Mitigation) within the Measurement and Planning Team. In this role, he supports the delivery of technical assistance to help C40 cities develop greenhouse gas emissions inventories in line with international best practice. This includes the development of further guidance, resources and case studies on data management, inventory development and climate action planning.

Prior to joining C40, Ryan worked with cities at CDP (formerly Carbon Disclosure Project) to help them publicly disclose their climate-related data and connect them with resources to advance their climate planning. There, Ryan led engagement with UK Cities, helping them to use public disclosure as part of their climate emergency response, and providing feedback on their plans and inventories to help build their evidence base for action.

Ryan holds an MSc in Sustainability, specialising in CSR, from the University of Nottingham and a BSc in Accounting and Finance.