World Green Infrastructure Congress 2026
Register before September 30 and save 15%
Register before September 30 and save 15%
World Green Infrastructure Congress 2026 — The researchers, designers and city-makers building greener cities meet in Barcelona and Lleida. Register before 30 September and save 15%.
Climate resilience. Water. Health. Biodiversity. Green jobs — 137 papers from 31 countries, gathered around one question: how green infrastructure builds a healthier and safer urban future.
Two days of congress, one day across Barcelona, one day of research in Lleida — Six duet keynotes, five parallel tracks and 98 oral presentations from 31 countries.
Barcelona is the case study. Walk through it. — Exclusive technical visits to green roofs and vertical gardens, guided by the teams that built them. Limited places.

Green infrastructure has moved from pilot project to city policy

For years, green roofs, urban forests and nature-based solutions were something cities tried. Today they appear in building codes, municipal budgets and public health strategies across the world.

WGIC26 brings together the people writing those rules and the people delivering the results: policymakers, researchers, architects, engineers, contractors and city officials, for four days in Barcelona and Lleida.

120+
papers submitted
1000+
expected attendees
35+
countries
12th
edition
Top countries represented
Spain·Austria·Belgium·Italy·USA
Featured speakers

International voices redefining how cities live with nature

Marcos Ros
Marcos RosArchitect, academic, and Member of the European Parliament, Marcos Ros works at the intersection of urban policy, sustainability, housing, and the built environment, bringing a strong European institutional perspective to the future of cities.
Wendy Y. Chen
Wendy Y. ChenProfessor at the University of Hong Kong, Wendy Y. Chen specialises in urban green-blue infrastructure, focusing on how nature-based solutions improve urban sustainability, planning, and quality of life.
Salvador Rueda
Salvador RuedaFounder of the Urban and Territorial Ecology Foundation (FEUT), Salvador Rueda is a pioneer in urban ecology and the creator of the internationally recognised Superblocks model, which is redefining healthier and more liveable cities.
Alberto Estevez
Alberto EstevezArchitect and founder of ESARQ-UIC Barcelona, Alberto T. Estévez is a leading voice in biodigital architecture, exploring the convergence of design, biology, advanced technology and sustainability
Enric Batlle
Enric BatlleFounding Partner of Batlleiroig, architect and landscape architect Enric Batlle is internationally known for integrating architecture, landscape, and urban planning to create resilient and environmentally conscious urban environments.
Maria Buhigas
Maria BuhigasMaria Buhigas is the Chief Architect of Barcelona City Council
Jesús Pérez Gil
Jesús Pérez GilVice President of the One Health Platform (POH), representing the Spanish Conference of Biology Deans (CEDB), and Chair Professor at the Faculty of Biology of the Universidad Complutense de Madrid.
Maria Àngels Balsells
Maria Àngels BalsellsMaria Àngels Balsells Bailón is Rector and Chair Professor of Education at the UdL
Cristina Martínez
Cristina MartínezCristina Martínez Aransay is Head of the Cities Area at Fundación Biodiversidad (MITECO)
Victoria Pérez
Victoria PérezVictoria Pérez García is Cities Area Coordinator at Fundación Biodiversidad (MITECO)
Loredana Scuto
Loredana ScutoLoredana Scuto is Senior Programme Officer - Urban at IUCN
Job Mwangi
Job MwangiJob Mwangi is Advocacy Manager at The Green Belt Movement and a Kenyan lawyer and communications professional
Sergio Carratalá
Sergio CarrataláAfter 15 years as a civil engineer working on major infrastructure projects, Sergio Carratalá founded MataAlta in 2018 with the conviction that engineering can also help regenerate the territory
Luigi Petito
Luigi PetitoLuigi Petito, 51, is an expert in European public affairs based in Brussels, the crossroads of international affairs and the European institutions
Chiara Farinea
Chiara FarineaChiara Farinea is an Italian architect, urban planner and researcher exploring the integration of nature into cities, with a focus on more-than-human and interspecies design and emerging technologies
David Vernon Brasfield
David Vernon BrasfieldArchitect and building engineer promoting green infrastructure since 2006, David Vernon Brasfield is Chairperson of the Norwegian Association for Green Infrastructure and Board Member and Supervisor of the World Green Infrastructure Network (WGIN)
Gabriel Pérez
Gabriel PérezGabriel Pérez Luque is Chair Professor of Architectural Construction at the Universitat de Lleida (UdL)
Steven Peck
Steven PeckSteven Peck is co-founder and President of the World Green Infrastructure Network (WGIN) and founder of Green Roofs for Healthy Cities
Camille Tallon
Camille TallonCamille is C40's Senior Manager for Urban Planning and the 15-Minute City
Paloma Aba Garrote
Paloma Aba GarroteSince 2023, Paloma has served as Director of CINEA, the executive agency established by the European Commission to implement EU funding programmes that boost green growth and clean industry in Europe
Where it happens

Four days, two cities, three ways to take part

Your research, in front of 30 countries.

Posters go on display for all four days, with dedicated slots for authors to present their work. Accepted submissions are published in the congress proceedings.

Closes 30 September
Stay in the loop

Program updates, keynote announcements and registration deadlines, straight to your inbox.

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Sponsors & Partners

Organized by

WGI NetworkUniversitat de LleidaLIFE - European Climate, Infrastructure and Environment Executive Agencyit4s – Innovative Technologies for SustainabilityBIG4LIFE

Emerald Partners

Semper GreenSoprema

Platinum Partners

Magyar Kertörökség Alapítvány

Garden Big Exhibitors

JardinMovilEixverdZinco

Garden Medium Exhibitors

VerdticalHunterProjarLe Prieuré

Media Partners

Greenroofs.comScalaeConstrunewsArquiterra

With the Support of

ASESCUVEArboretumPronaturEADCIDAEACSICGremi de Jardineria de CatalunyaViles FloridesOne HealthAEPJPDiputació de LleidaDiputació de BarcelonaASESCUVEArboretumPronaturEADCIDAEACSICGremi de Jardineria de CatalunyaViles FloridesOne HealthAEPJPDiputació de LleidaDiputació de BarcelonaASESCUVEArboretumPronaturEADCIDAEACSICGremi de Jardineria de CatalunyaViles FloridesOne HealthAEPJPDiputació de LleidaDiputació de Barcelona
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