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Circularity Assessment Protocol: Melaka, Malaysia

Year of Publication


Between October 2020 and March 2021, a team from Universiti Kebangsaan Malaysia (UKM) with guidance and support from the Circularity Informatics Lab, conducted fieldwork in Melaka, Malaysia. The CAP was conducted with support from the city’s local government, the Chief Resilience Officer (a top-level advisor in the city that is responsible for leading, coordinating and developing a city’s resilience strategy and policy), and the larger Urban Ocean team.


The Circularity Informatics Lab


Taylor Maddalene, Azlan Abas, Quinn O’Brien, Kathryn Youngblood, Jenna Jambeck , Madison Werner




Purpose of Measurement:

Understanding the Problem, Monitoring and Evaluation

Impact theme(s):

Material Flows, Oceans, Climate, Policy

The Circularity Assessment Protocol (CAP) is a standardized assessment diagnostic tool to inform decision-makers through collecting community-level data on plastic usage and management. Grounded in materials flow and systems thinking concepts, the CAP uses a hub-and-spoke model to holistically characterize how consumer plastic flows into a community, is consumed, and flows out, either through waste management systems or leakage into the environment. The model consists of seven spokes: input, community, material and product design, use, collection, end of cycle, and leakage.

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