Circular City in Action : state of the art and case studies

The COST Action Circular City launched a Special Issue on "Towards Circular Cities" in the new IWAP Open Access on-line journal Blue-Green Systems (https://iwaponline.com/bgs). This issue is part of a broader report available from #Circular City website. It is composed of a general introduction “Implementing nature-based solutions for creating a resourceful circular city” followed by five state-of-the-art review papers from the Action's five Working Groups: 1. “Enhancing the circular economy with nature-based solutions in the built urban environment: Green building materials, systems and sites”; 2. “State of the Art of Implementing Nature Based Solutions for Urban Water Utilization Towards Resourceful Circular Cities”; 3. “A review of nature-based solutions for resource recovery in cities”; 4. “Urban agriculture as an innovative mechanism to secure cities a sustainable and healthy development in the future”; 5. “Transformation Tools Enabling the Implementation of Nature-based Solutions for Creating a Resourceful Circular City”. In total 105 persons from 35 COST countries contributed to the review papers.