CE World Principles for a sustainable circular economy This paper discusses the systems ecology literature that construed the context for both circular economy and sustainable development. Values and principles in core sustainable development literature are analysed to offer a foundation against which circular economy can be discussed. We then analyse and critically reflect upon the strengths, shortcomings and theoretical flaws within the values and principles that emerged from the evolving circular economy literature. Link Principles, drivers and opportunities of a circular bioeconomy This paper presents five ecological principles to guide biomass use towards a circular bioeconomy: safeguarding and regenerating the health of our (agro)ecosystems; avoiding non-essential products and the waste of essential ones; prioritizing biomass streams for basic human needs; utilizing and recycling by-products of (agro)ecosystems; and using renewable energy while minimizing overall energy use. Link The Circular Economy: A review of definitions, processes and impacts This paper reviews the growing literature on the circular economy with the aim of improving our understanding of the concept as well as its various dimensions and expected impacts. On the basis of this review, it attempts to map the processes involved and their application in different sectors. Link