Plastic Pollution in the Mediterranean: Which Role for Coastal Cities and Their Valuable Ecosystems?

Plastic pollution poses a growing threat to Mediterranean populations and ecosystems, driven by unsustainable consumption patterns, insufficient waste management, and governance gaps. Despite existing legal frameworks in many countries, plastic leakage into the sea continues to increase.

With around 70% of the Mediterranean population living in coastal urban areas, cities are both major sources of plastic waste and among the most exposed to its impacts on biodiversity, tourism, fisheries, and public health. This note explores how coastal cities can become key actors in reducing plastic leakage through integrated approaches. It highlights the role of Nature-based Solutions and healthy coastal ecosystems, such as wetlands, river mouths, and seagrass meadows in intercepting waste and strengthening urban resilience. It also emphasizes the importance of effective governance, circular economy policies, and improved waste systems, alongside citizen engagement and grassroots initiatives that support lasting behavioral change.

By combining ecological, institutional, and community-driven actions, coastal cities can help reduce plastic pollution at source while protecting the Mediterranean Sea and the valuable ecosystems on which they depend.

Other recent publications

04/02/26

Urban and Coastal Water Management through Nature-Based Solutions

In response to growing water-related challenges in Mediterranean urban and coastal areas, this policy note examines the potential of Nature-Based Solutions (NbS) as integrated, sustainable,

Read more
29/01/26

Unpacking the potential of Integrated Coastal Zone Management & Maritime Spatial Planning processes for sustainable tourism in the Mediterranean

This report explores the potential of the Integrated Coastal Zone Management (ICZM) and Maritime Spatial Planning (MSP) legislative frameworks to transform tourism in the Mediterranean.

Read more
11/12/25

Plan Bleu at COP24: Commitments and Contributions for a Sustainable Mediterranean

The 24th Meeting of the Contracting Parties to the Barcelona Convention (COP24) was held from 2 to 5 December 2025 in Cairo, bringing together Mediterranean

Read more
Plan Bleu
Building the Mediterannean’s future together
Plan Bleu