Speakers

Jonathon is one of the UK's most prominent voices on sustainable development. He co-founded Forum for the Future in 1996 and chaired the UK Sustainable Development Commission for nine years. A former Co-Chair of the Green Party and Director of Friends of the Earth, his latest book, Love, Anger & Betrayal, was co-authored with 26 Just Stop Oil campaigners.

Laura is Standards and Guidance Director at GMA, working on the AIM Platform to help companies credibly calculate and claim emissions reductions from value chain investments. She is also Chair of the SBTi Technical Council. Previously, Laura was Senior Director of Corporate Climate Action at Ceres and worked on the GHG Protocol team at WRI, where she helped develop the Scope 3 and Product Life Cycle accounting standards.

Tim leads the GHG Protocol as it undertakes its landmark standards revision. He brings over 20 years' experience embedding sustainability into business operations at Fortune 500 companies. Previously, he served as Chief Executive of the Global Reporting Initiative (GRI) and held senior sustainability roles at Intel, Apple and AMD. Tim founded the Responsible Business Alliance and is the author of Changing Business from the Inside Out.

Kaya is Director of Impact 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.

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.

KT leads the climate & nature strategy across the ALDI South Group's international operations. Previously, KT spent over four years at Starbucks leading corporate climate action strategy, environmental inventories and the decarbonisation of green coffee sourcing. Before that, KT rose to Managing Director at FrameworkESG, consulting on ESG strategy and analytics for Fortune 500 companies. KT holds an MSc in Carbon Management from the University of Edinburgh.

Boris is an AI Sustainability Leader focused on aligning AI development with climate action. He is the co-founder and CEO of the Sustainable AI Group, a research and advisory firm helping enterprises understand and act on the environmental impacts of AI. Previously, as Head of AI Sustainability at Salesforce, he built the company's AI sustainability strategy and co-created the AI Energy Score, the first standardised benchmark for measuring AI model energy use.

Caroline leads climate, circularity and reporting at Logitech, where she developed the corporate carbon model and SBTi programme. Under her leadership, Logitech delivered product carbon footprint studies for 100% of its target products. With over 20 years in global sustainability leadership, Caroline is a leading voice in sustainable product design and carbon accounting within the electronics sector.

Ian works in Mars' Corporate Sustainability Team, covering renewable energy, centralised programmes utilising environmental attribute certificates, and the operational sustainability of the global factory and logistics network. A UK-based chemical engineer, Ian has held various engineering and sustainability leadership roles within Mars over a thirty-year period.

Katy leads environmental sustainability assessments for new technologies, ingredients and products at Unilever. She represents Unilever in the PACT Framework methodology working group and is a member of the Joint Working Group revising ISO 14067 and the GHG Protocol Product Footprinting Standard. Katy holds a PhD in Chemical Engineering and is a visiting lecturer at the University of Sheffield.

Alexandra leads efforts to decarbonise one of the world’s largest and most complex healthcare supply chains. She has been instrumental in translating the NHS’s net zero ambition into action, driving supplier engagement, emissions reduction, social value, and modern slavery initiatives. A recognised leader in sustainable procurement, she was named the 5th most influential woman in procurement by Procurement Magazine in 2024 and brings extensive experience in sustainability strategy and healthcare decarbonisation.

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.

Oliver is the founder and chair of the Scope 3 Peer Group, an invite-only global collective of over 3,000 practitioners collaborating on supply chain emissions reduction. He is also a steering group member at the Sustainable Procurement Pledge, which aims to help one million procurement professionals embed sustainability into their ways of working by 2030.

Isobel works at the World Business Council for Sustainable Development, driving adoption of the PACT framework for product carbon footprint data exchange. Previously, she spent over two years at Manufacture 2030 managing the launch of their Product Carbon Footprint tool and developing emissions reduction guidelines for supply chains. Isobel holds an MSc in Sustainability, Planning and Environmental Policy from Cardiff University.

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.

Ben leads procurement ESG at Sandoz, a global pharmaceuticals company. Previously, he was Director of Sustainable Supply at Haleon and spent over five years at GSK in environmental stewardship and sustainable supply roles. Ben holds an MSc in Corporate Responsibility and Sustainability and hosts The Supply Geek Podcast.

Sue leads operations and professional standards at ISEP, the body responsible for professional registration in the environmental sector. She brings senior leadership experience from the private and public sectors, including Severn Trent Water, Vodafone, Barclays and the Cabinet Office. Sue is a Board member at the Society for the Environment and Chair of their Registration Authority.

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.

James is the founder of Thrive Accountants, a B Corp certified practice serving impact-driven tech startups. He is the author of Catalyst: How Accountants Can Be the Agents of Change in the Net Zero Transition and sits on the ACCA Global Council. James has nearly two decades of experience in commercial finance and is a partner of the Million Tree Pledge.

Mike consults, thinks, writes and researches on sustainability and responses to 21st century problems. He is the author of acclaimed books, including A Climate of Truth, There is No Planet B and How Bad Are Bananas? the book that brought carbon accounting to a global audience. He's the Founder and  Director of Small World Consulting, a Professor at Lancaster University and Chair of the National Emergency Briefing. 

Chloë leads policy advocacy and practice guidance at ISEP on sustainability disclosures, with a focus on emissions reporting, adaptive capacity, and transition planning. She has previously worked at senior levels in the manufacturing and retail sectors, and in climate and sustainable development planning roles in the public sector.

Inês leads capacity-building programmes at WBCSD empowering businesses to deliver on net zero, and supports corporate engagement in the revision of the GHG Protocol standards. She sits on the Technical Working Group contributing to the revision of the GHG Protocol Corporate Standard. Inês holds a master's in Environment and Resource Management.

Thea leads ECOS's work on GHG accounting and net zero standards, ensuring environmental aspects are incorporated into relevant frameworks. She is directly involved in the ISO/GHG Protocol product and project standards, has served as an expert on SBTi's Corporate Net Zero Standard, and is involved in ISO's new Net Zero Aligned Organisations standard.

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.

Stella drives the integration of sustainability into business strategy and operations at Syntegon, with over 25 years of experience across manufacturing, logistics, procurement and R&D. Previously, she led Unilever's Supplier Climate Programme, partnering with global suppliers to advance carbon transparency and accelerate Scope 3 emissions reductions across complex value chains.

Shona leads Sylvera's carbon-differentiated commodities business, covering product, strategy and commercial. She works with buyers and producers on carbon intensity assessment, market intelligence and pricing across lower-carbon commodities, and on the strategy behind it, spanning both regulatory and voluntary schemes. Shona co-founded the Carbon Data Open Protocol (CDOP) and is a co-chair. She has spent the last decade in carbon markets and agriculture, and writes and speaks regularly on topics in the market such as EACs.

Kalina supports companies on the adoption of GHG Protocol standards and net zero frameworks, including SBTi and ISO, across carbon accounting and carbon dioxide removal workstreams. She previously managed Scope 1, 2 and 3 emissions calculation and science-based targets in-house at Karl Lagerfeld. Kalina holds an MSc in Sustainable Business and Innovation from Utrecht University.

Jessie co-founded The Climate Source to design market-based strategies for agricultural systems change, developing decarbonised supply chains and regenerative agriculture programmes with food companies, suppliers and farmers. She leads the BoundDairy Accounting platform, a carbon accounting system tracing emissions from farm to product carbon footprint across dairy supply chains.

Matt is the founder and CEO of UK Carbon Verification, a specialist independent verification and assurance body focused on organisational GHG inventories. Previously Commercial Director at Planet Mark, Matt founded UKCV to strengthen confidence in carbon data as it becomes increasingly relied upon by customers, investors, procurement teams and supply chains.

Caroline founded Rawstone Consulting eight years ago after heading up sustainability in-house for several organisations. Rawstone provides strategic ESG and GHG advice to medium and large businesses across a range of industries. Caroline was one of the first people in the UK to become an SBTi Certified Expert and is a Fellow of the Institute of Corporate Responsibility and Sustainability.

Andrew leads ClimatePartner’s international delivery team, enabling a team of experts to help organisations achieve their Net Zero goals through high-quality carbon management and climate action services. 

Mel is CEO and founder of Carbonology, the UK's specialist carbon standards verification body. With over 20 years' experience in sustainability standards, Mel provides GHG organisational verification (ISO 14064) to leading UK law firms and major corporates. She developed the Carbonology assurance model and Carbonologist qualification, and hosts the globally popular podcast The ISO Show.

Ellie is a communications and engagement professional with experience across energy, sustainability and purpose-driven organisations. Previously, she managed stakeholder relationships at Energy UK and led content and campaigns at Ripple Energy and Rebel Energy. Ellie holds an MSc in Energy Policy from the University of Sussex and was named Business Green Rising Star of the Year 2023.

Daniela is a senior sustainability consultant at ClimatePartner, specialising in carbon accounting, climate risk assessment and climate-related financial disclosures across frameworks including CSRD, TCFD and UK-SRS. She has broad expertise in global regulatory compliance, connecting regional requirements into coherent disclosure strategies. Daniela holds an MSc in Carbon Management from Edinburgh University.