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Horizon Europe – Clean environment and zero pollution – 2023

Horizon Europe - Clean environment and zero pollution aiming at reaching environmental sustainability

Detailed budget by topic below

Appeal framework

Institution European Commission
Sectors Environment & Climate Research & Innovation
Beneficiaries Association & NGO EU & International Organisation Research centre & university
Regions Developing countries, European Economic Area, European Union
  • Member States
  • Associated Countries
  • Low and middle-income countries

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Priorities and funded actions

Some Horizon Europe budgets are structured in response to policy ambitions (“destinations”) and deployed through calls for proposals targeting more specific thematic/sector (“Topics”). Thus, your application must be linked to a topic of a call for proposals.


Various categories of projects are eligible:

  • RIA, Research and Innovation Actions: Basic and applied research / Technology development and adoption / Testing and validation of a prototype in the laboratory.
  • IA, Innovation Actions: Prototypes, tests, demonstrations, pilot projects, market placement. These actions may include limited R&D activities.
  • CSA, Coordination and Support Actions: Networking, studies & conferences, communication, studies for new research infrastructures.
  • MSCA, Marie Skłodowska-Curie Actions / ERC individual grants: Training networks for researchers, Individual grants for experienced researchers, Staff exchange – mobility for researchers and non-scientific staff.


In addition, calls specify the categories of eligible beneficiaries:

  • Collaborative projects, composed of a coordinator and several partners organisations (consortium)
  • Single-beneficiary projects, involving a single organization
  • Individual scholarships, open to natural persons in their own name with their home institution



  • HORIZON-CL6-2023-ZEROPOLLUTION-01-1: Knowledge and innovative solutions in agriculture for water availability and quality
  • HORIZON-CL6-2023-ZEROPOLLUTION-01-2: Integrated assessment and monitoring of emerging pollutants in the marine environment
  • HORIZON-CL6-2023-ZEROPOLLUTION-01-3: Tackling human and climate change induced pollution in the Arctic – building resilient socio-ecological systems
  • HORIZON-CL6-2023-ZEROPOLLUTION-01-4: Environmental sustainability and circularity criteria for industrial bio-based systems
  • HORIZON-CL6-2023-ZEROPOLLUTION-01-5: Industrial biotechnology approaches for improved sustainability and output of industrial bio-based processes
  • HORIZON-CL6-2023-ZEROPOLLUTION-01-6: Biosensors and user-friendly diagnostic tools for environmental services
  • HORIZON-CL6-2023-ZEROPOLLUTION-01-7: Strategies to prevent and reduce plastic packaging pollution from the food system

Amount per topic:

  • HORIZON-CL6-2023-ZEROPOLLUTION01-1: 6 million euro
  • HORIZON-CL6-2023-ZEROPOLLUTION01-2: 12.5 million euro
  • HORIZON-CL6-2023-ZEROPOLLUTION01-3: 12 million euro
  • HORIZON-CL6-2023-ZEROPOLLUTION01-4: 8 million euro
  • HORIZON-CL6-2023-ZEROPOLLUTION01-5: 10 million euro
  • HORIZON-CL6-2023-ZEROPOLLUTION01-6: 8 million euro
  • HORIZON-CL6-2023-ZEROPOLLUTION01-7: 8 million euro

Test your eligibility

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