ICOS Cities
ICOS Cities brings together European citizens, policy makers and top scientists in co-designing pioneer greenhouse gas measurement methodologies and services for cities to support climate action.






The biggest outcomes of the project
As an outcome of the project, we compiled a set of materials to empower urban administrations with the scientific tools and integrated insights necessary for efficient, measurable climate action. These materials will be helpful for:
- City governments and administrations
- Businesses and service providers
- Researchers and academia
Set up a greenhouse gas emission inventory
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Set up an observational monitoring system
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Benefits from vegetation
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Handbook of European greenhouse gas observations
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ESS citizen climate opinion survey results
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FLUXES, The European Greenhouse Gas Bulletin
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Urban Emission Observation and Monitoring Good Research Practice Guidelines 2025 edition
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ICOS Cities Data Portal
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Educational modules
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15 cities involved in Europe
3 pilot cities: Paris, Zurich and Munich
To test the feasibility of different modelling approaches in various areas, three cities of different size have been selected as pilots: Paris (large), Munich (medium) and Zürich (small)
12 additional cities in Europe
To increase the impact and to make sure the concept developed will fit for different types of cities in different countries and landscapes, 12 other cities – Antwerp, Athens, Barcelona, Basel, Brno, Copenhagen, Heidelberg, Helsinki, Krakow, Porto, Rome and Rotterdam - are also joining the city network
PAUL, Pilot Applications in Urban Landscapes - Towards integrated city observatories for greenhouse gases (ICOS Cities), has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No 101037319.