Island ecosystems, are characterized by isolation, limited land, and tourism-driven economies, face persistent waste management challenges. Spatial constraints and inadequate infrastructure often limit the development of waste recovery and recycling systems, leading to practices such as open dumping or burning that pose serious environmental and health risks. This paper examines how circular economy (CE) principles, reduce, reuse, recycle, can transform waste into a resource and enhance local resilience. A refined definition of “small islands” is introduced, combining UN criteria with a tourism-intensity filter to capture the strong link between visitor flows and solid waste generation. Barriers to CE adoption are classified into institutional, technical, geographical, financial, and social dimensions, and connected to enabling practices in four thematic areas: multi-stakeholder partnerships, recycling and composting innovations, policy and regulatory tools, and community engagement. Comparative case studies from Europe, Asia, Africa, and the Pacific reveal that integrated approaches are more durable than isolated efforts. Successful initiatives blend technology with governance, education, financial mechanisms, and community participation. The analysis highlights that no single model fits all islands; strategies must be locally adapted to be effective and transferable. Overall, the study shows that circular transitions are both feasible and necessary, offering environmental gains, economic value, and alignment with the EU Green Deal and global sustainability goals.

In recent years, there has been an ever-intensifying discussion around the use and establishment of Central Bank Digital Currencies (CBDC) in the global economy. This paper examines the reasons why central banks are aiming to introduce CBDCs into the economy, as well as the ways in which the use of CBDCs could contribute to the transition to the Green Economy, focused mainly around the area of providing financial means and incentives towards green investments, green renovations, and more sustainable energy consumption practices. Aiming to provide an all-around and concise overview of CBDCs, this paper explores their technological background, as well as the areas in which they will mainly contribute, as a means of transaction or value storage. Special mention is also made of the initiatives undertaken by the European Central Bank for the issuance of the digital euro as well as the legal and technological framework within which it could operate, to serve the objectives of the EU. Finally, the potential role of CBDCs in the green economy is examined, and ways in which they could be used as a means of supporting individuals and businesses investing in this direction are presented. This publication is written in the context of the Horizon Europe funded project FORTESIE.

With an emphasis on pilots in Spain and Portugal, this study examines the connection between Efficient, Sustainable, and Inclusive Energy (ESIE) performance improvements, home renovations, and tenant/owner behavior within the framework of the FORTESIE project (CBDC-powered Smart PerFORmance contracTs for Efficiency, Sustainable, Inclusive, Energy Use). This paper investigates the relationship between tenant behavior along with energy consumption and renovation packages that also include digital technologies and energy efficiency measures. It studies the efficiency and effectiveness of the FORTESIE Common Impact Model (CIM) towards engaging homeowners/tenants, comprehending their driving forces, and implementing customized plans to encourage sustainable energy practices. This study presents applied case studies with different digital and energy literacy backgrounds and emphasizes the importance of considering elements such as cultural settings, energy poverty, and digital literacy when creating sustainable energy engagement approaches and putting them into practice. Taking into account these elements, this study investigates whether the CIM can be used effectively in diverse settings to engage with stakeholders and help create customized and appropriate energy behavior pathways.