Speakers

Matthew holds the Chair of Carbon Accounting at the University of Edinburgh's Business School, where his research focuses on greenhouse gas accounting methods across corporate, product, project, and policy levels. He has contributed to technical working groups for the GHG Protocol, ISO, and SBTi, with particular expertise in bioenergy, offsetting, electricity accounting, and greenhouse gas removal.

Kaya is a Policy Research Fellow at Oxford Net Zero, where she focuses on climate governance and accelerating net-zero transitions. With expertise spanning voluntary and mandatory climate frameworks, she has collaborated with organisations including the UN High-Level Expert Group on Net Zero, ISO, and the Race to Zero campaign to translate climate science into actionable policy and practice.

Maia is Global Director of the GHG Protocol at WBCSD, co-leading its secretariat alongside WRI. With over 15 years’ experience, she previously directed corporate and cities reporting at CDP, helping thousands of organisations—including large global companies and municipalities—measure and disclose climate-related data.

Paul is the founder of CDP, co-founder of Transition Value Partners and a presenter on the Outrage & Optimism podcast alongside Christina Figueres and Tom Rivett-Carnac. He founded CDP in 2000 with an ambition of creating a global economic system that operates within sustainable environmental boundaries and prevents dangerous climate change.

Tamara leads sustainability at Xero, the global accounting software firm. On a mission to shake up how business leaders think about sustainability, she helps organisations embed responsible practices – from carbon accounting to ethical supply chains – into everyday decisions. With over 25 years of international experience, Tamara cuts through the noise to turn sustainability from a nice-to-have into how business gets done.

Hessam is CEO and co-founder of Climatiq, the carbon intelligence platform providing scientifically vetted emissions data and tools to simplify carbon accounting and PCF calculations. Named a Gartner Cool Vendor, Climatiq serves as the emissions data infrastructure layer for global platforms including Salesforce, IFS and Celonis. Previously, Hessam founded Jobspotting (acquired by SmartRecruiters) and led Search Quality teams at Google.

Alexander is the founder of Symbiosis Leadership, where he brings leaders together to work on problems too complex or cross-cutting to solve from behind a desk. He holds a PhD in Econometrics and contributes to standards shaping corporate climate accountability, including the UN Transparency Protocol. He is a Fellow at the Exponential Roadmap Initiative.

Tamara leads sustainability at Xero, the global accounting software firm. On a mission to shake up how business leaders think about sustainability, she helps organisations embed responsible practices – from carbon accounting to ethical supply chains – into everyday decisions. With over 25 years of international experience, Tamara cuts through the noise to turn sustainability from a nice-to-have into how business gets done.

Hessam is CEO and co-founder of Climatiq, the carbon intelligence platform providing scientifically vetted emissions data and tools to simplify carbon accounting and PCF calculations. Named a Gartner Cool Vendor, Climatiq serves as the emissions data infrastructure layer for global platforms including Salesforce, IFS and Celonis. Previously, Hessam founded Jobspotting (acquired by SmartRecruiters) and led Search Quality teams at Google.