17. February 2026

PREVENT

PREVENT Webinar Series “From Assessment to Action – Tackling Plastic Leakage for a Global Plastics Treaty”

🌊How can we assess and address plastic pollution effectively to support a robust Global Plastics Treaty? Find out in our webinar series on methods for assessing plastic leakage!

We’re excited to continue our PREVENT webinar series, “From Assessment to Action – Tackling Plastic Leakage for a Global Plastics Treaty”. This series explores different plastic leakage assessment methods at global, national, and local levels – highlighting how data-driven approaches can inform policies and actions to reduce plastic pollution. These assessments provide the data needed to set targets, track progress, and design effective policy measures for a strong Global Plastics Treaty.

 

Join us for Session 3: From Assessment to Action – Tackling Plastic Leakage for a Global Plastics Treaty on 17 February at 1 pm CET! We will highlight the role of global monitoring of plastics in the context of the Plastics Treaty and showcase the SPOT Methodology developed by the University of Leeds / Imperial College London. The SPOT Methodology is the first plastic pollution inventory and hotspot model to use bottom-up waste and resource management data. Finally, we will discuss the added value and role of different approaches to assessing leakage for tackling plastic pollution as well as the challenges in applying these methodologies in a harmonized way.

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In the first two sessions, we explored the value of municipal and national plastic leakage assessments and shared practical insights on:

 

Session 1: ‘From Assessment to Action’ #1 – Tackling Plastic Leakage on the City Level

  • Relevance and methodologies for monitoring and plastic leakage assessments by Josh Cottom (Imperial College London)
  • UN Habitat’s Waste Wise Cities Tool presented Shiho Jinno (UN Habitat)
  • Waste Flow Diagram presented by Steffen Blume (GIZ)

Session 2: ‘From Assessment to Action’ #2 – Tackling Plastic Leakage on National Level

  • IUCN’s Plastic Hotspotting Methodology presented by Lynn Sorrentino (IUCN)
  • GPAP’s National Analysis and Modelling (NAM) Tool presented by Margherita Pucino (GPAP)

 

You have missed the first two sessions? No worries, you can now watch the recordings of the first two sessions on YouTube!

 

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Stay tuned as we will continue the webinar series in January with a session on plastic leakage assessments on the global level!