1. US Environmental Protection Agency (USEPA). 2017. Sustainable materials management: Non-hazardous materials and waste management hierarchy. Available at: https://www.epa.gov/smm/sustainable-materials-management-non-hazardous-materials-and-waste-management-hierarchy. Accessed 3 Sept 2022.
2. European Commission (EC). 2017. Communication from the commission to the European parliament, the council, the European economic and social committee and the committee of the regions: The role of waste-to-energy in the circular economy. Available at: https://ec.europa.eu/environment/waste/waste-to-energy.pdf. Accessed 3 Sept 2022.
3. International Energy Agency (IEA). 2017. Energy technology perspectives 2017—towards sustainable urban energy systems. Available at: https://www.iea.org/etp/. Accessed 3 Sept 2022.
4. International Energy Agency (IEA). 2017. Cities lead the way on clean and decentralized energy solutions. Available at: https://www.iea.org/newsroom/news/2017/april/cities-lead-the-way-on-clean-and-decentralized-energy-solutions.html. Accessed 3 Sept 2022.
5. United Nations Framework Convention on Climate Change (UNFCC). 2018. Mitigation benefits and co-benefits of policies, practices and actions for enhancing mitigation ambition: implementation of circular economies with a focus on waste-to-energy technologies and on industrial waste reuse and prevention solutions. Technical Paper by the secretariat. Available at: https://unfccc.int/sites/default/files/resource/tpMitigation.pdf. Accessed 3 Sept 2022.