This community explores how repair, remanufacturing, refurbishment and reuse can reduce waste and extend product lifespans. With new EU policies boosting the Right to Repair, we connect Leiden-Delft-Erasmus researchers and students to businesses, policymakers, citizen initiatives and other societal partners, to develop circular solutions and keep materials in use through collaborative, system-wide change.

This community promotes circular, low-impact horticulture by reducing pesticides, reusing resources and developing resilient crops. Collaboration with leading knowledge partners strengthens the sector’s global frontrunner position, supporting greener cities, greater biodiversity and progress toward a plant-based, sustainable food system.

This community addresses a just climate transition by ensuring climate policies share costs and benefits fairly, include marginalised voices, create sustainable employment and protect natural resources. The focus lies on equity, participation and resilience for communities most affected by climate change.

This community advances sustainable plastics by promoting safe materials, effective recycling and supportive policy. Collaboration across the entire value chain is central to reducing environmental pollution, limiting harmful additives and ensuring plastics contribute responsibly to Europe’s green transition while protecting people and ecosystems.

This community explores regenerative futures by moving beyond efficiency-based sustainability toward approaches that restore ecosystems and create positive impact. Through interdisciplinary collaboration and creative thinking, it reimagines systems, values and practices to support resilience, life-centred design and long-term societal and ecological renewal.

This community supports the aviation sector’s transition by exploring sustainable design, fuels, and end-of-life solutions through research-driven collaboration. 

In September 2025, the community was transferred to the Faculty of Aerospace Engineering at TU Delft under the umbrella of the Flying Vision Accelerator, marking a positive next step: after building a strong network through Thesis Labs and events, the ecosystem is now embedded with sector experts to accelerate long-term collaboration and innovation.

More information? Contact Elise Blondel (LDE CfS) at e.h.m.blondel@cml.leidenuniv.nl

This community advances green healthcare by reducing the sector’s waste and carbon footprint while safeguarding public health. Through collaboration between practice and research, it supports scalable solutions that embed sustainability in care delivery and innovation across the healthcare system.

The community was transferred in March 2026 to Medical Delta, under the umbrella of the Society ‘Sustainability & Greening’.

More information? Contact Ilse Markensteijn (LDE CfS) at i.d.markensteijn@cml.leidenuniv.nl or Marina Bakker (Innovation Manager Medical Delta) at marina.bakker@medicaldelta.nl.