Tamás Kállay

Edited on 16/10/2025

Tamás Kállay

  • Hungary

  • Hungarian, English, French
Tamás Kállay photo
Availability :
Available for Lead Expert role and Ad-hoc expertise missions

Validated Expert info

Expert can perform the Lead expert role and Ad hoc expertise missions at network and programme level in relation to:

  1. The design and delivery of (transnational) exchange and learning activities 
  2. Thematic expertise:
    > Circular Economy
    > Urban Design
    > Climate Adaptation
  3. Methods and tools for integrated and participatory approaches:
    > Integrated and participatory design of strategies
    > Securing funding and resourcing

Summary

Tamás Kállay is an expert on nature-based solutions, green spaces, biodiversity and air quality. He has been working as an environmental consultant since 2002. Recently, he worked as a biodiversity expert at the Department of Biodiversity and Gene Conservation within the Ministry of Agriculture of Hungary, where he dealt with the UN Convention on Biological Diversity (CBD) and the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES). In 2024 he was part of the Hungarian EU Presidency team for biodiversity and undertook EU coordination under the Convention on Biological Diversity (CBD). At the Biodiversity Summit (COP16) he was an EU Negotiator on Biodiversity and Health. On 11th session of the IPBES Plenary he was EU negotiator on the Nexus Assessment (an assessment of the interlinkages among biodiversity, water, food, health and climate change). Currently, he is the Innovative Actions Expert of the B-Connect project under the European Urban Initiative (EUI) that is supporting biophilic-centred tactical urbanism in the City of Bistrita. Earlier he acted as an URBACT Lead Expert of the Health&Greenspace Network that promoted health-oriented planning and management of urban green spaces. He was an UIA Expert of the CLAIRO project, that aimed at improving air quality with the use of nature-based solutions. He was also engaged as an UIA Expert providing support to the HOPE project of the City of Helsinki that piloted a next generation of air sensor technology using high-resolution hyperlocal air quality data. He specializes in health-oriented green space design, nature-based solutions, sustainable resource use, air quality, circular economy,  climate adaptation with a focus on combating heat stress, and policy analysis. For 10 years he was working at an international organization, the Regional Environmental Center for Central and Eastern Europe (REC), where he was the leader of the Sustainable Resource Use Topic Area. Tamás was acting as a Thematic Expert of the Interreg Europe Policy Learning Platform responsible for resource efficiency and circular economy. In this role he was providing policy support to Interreg Europe projects and to local and regional authorities across Europe. He was for 6 years a contributing expert of the European Topic Centre on Sustainable Consumption and Production (ETC/SCP) of the European Environmental Agency (EEA). Tamas was involved in a large number of policy studies for the EC and EEA in the fields of resource use, air quality and industrial emissions.

Some of his key publications include a Guide on health-oriented planning and use of urban green spaces, the final journal of the UIA HOPE project, a journal of the UIA CLAIRO project, a policy brief on circular economy in cities and regions, a study on industrial symbiosis for the EC, an EEA report on resource efficiency, an EEA report on waste prevention, and a study on industrial emissions for the EC.