John is responsible for managing a wide range of certification projects and has audited the product carbon footprints of over 200 individual products. He is a world-recognised expert in the product carbon footprinting of agricultural products, food and drink, but he also works across projects in the forestry, IT, chemicals and manufacturing sectors. Additionally, John has experience in analysing the water, land, trade, distribution, packaging and economic aspects of sustainable products.

John is the technical author of the carbon footprint assessment methodology for the UK dairy industry. His other activities include data management, Excel quality assurance, building online tools and reviewing ISO management system audits.

He has a PhD in Computational Neuroscience from the University of Sheffield, an MBA in Strategic Carbon Management from the University of East Anglia, and an MSc in Artificial Intelligence from the University of Edinburgh.