Harry Lehmann is General Director of the Environmental Planning and Sustainability Strategies Division of the German Federal Environment Agency. He was an early member and is now the President of the Factor 10 Club for resource productivity and sustainable use of natural resources. He is one of the founders of Eurosolar, and since 2011 he has been Executive Chairman of the World Renewable Energy Council.

Christoph Hinske is Associate Professor of System Leadership-Management, SAXION University of Applied Sciences, School of Finance and International Business; Founder of 360° Dialogues. He lectures on societal transformations at the Eberswalde University for Sustainable Development and advises Global Action Networks, financial institutions and Transformation Networks. He is a fellow at the European School of Governance.

Victoire de Margerie is the Founder and Vice-Chairman of the World Materials Forum and Executive Chairman of Rondol. She has spent 35 years in the Materials Industry in Canada, France, Germany, UK and USA, first as an Executive and since 1999 as a Board Director (now Arkema and Eurazeo). She was elected an Academician at the National Academy of Technologies of France in 2020.

Aneta Slaveikova Nikolova is the Climate Policy Lead, Environment and Development Division, Economic and Social Commission for Asia and the Pacific UNESCAP. Ms Nikolova heads a climate action team focusing on climate finance, Paris Agreement implementation and review of national GHG reduction commitments. She has vast experience in sustainable development policy and advocacy, capacity development and technical assistance to developing countries and countries with economies in transition.

PART 1: WHAT WE DREAM OF! 1. Circularity dreams - denying physical realities 2. Does waste equal food? Examining the feasibility of circular economy in the food industry 3. The impossible dream': can the circular economy alone solve waste management complexities of the Global South? 4. The entropic nature of the economic process: a scientific explanation of the blunder of circular economy 5. The impossibility of circular recycling PART 2: WHAT ARE OUR BLIND SPOTS? 6. Circular economy, sustainability and functional differentiation: an impossibility and its strategic-methodological implications 7. Circularity is not sustainability: how well-intentioned concepts distract us from our true goals, and how SiD can help navigate that challenge 8. Circular Economy: from panacea for sustainability to conceptual and resource realities 9. Some observations on the current Circular Economy model: in particular, the mineral-metal-material stream blind spots 10. Circular economy leadership: leadership mindsets and behaviours - the unseen impossibility 11. Can there be a responsible narrative about the circular economy? 12. Who has discursive agency to change global environmental narratives? Insights from the China-EU cooperation discourse on circular economy 13. Brazil's structural issues in advancing the circular economy: the case of biogas PART 3: WHAT WE NEED TO STRESS MORE! 14. The Circular Economy should finally demand the impossible 15. System leadership for overcoming the impossibilities of a circular economy 16. From closed to open systems: applying systems thinking to reframe strategic decision-making 17. Truly circular economies require deep collaboration: the principles underlying successful circular economies 18. Development and implementation of resource labelling 19. Circularity's stumbling blocks: how stuttering implementation and socio-metabolic root causes adversely interact PART 4: WHAT OPPORTUNITIES DO WE SEE? 20. Global resource use and the future: any room for the circular economy? 21. Regenerative economy: the embedding of circularity 22. Circular Economy through a system change lens 23. Practising circular economy: stumbling blocks for circulation and recycling 24. Implementation of refuse derived fuel technology toward achieving a sustainable circular economy: potentials and compatibility in Bangladesh. 25. From profit to prosperity: making the impossible possible through integral investing 26. Coming full circle: putting the social into circular economy