Active and completed initiatives across our partner cities
Expanding tree cover in 8 cities: Porto, Freiburg, Tallinn, Ljubljana, Ghent, Utrecht, Malmö, and Brno. Phase II targets residential streets and school grounds. €1.8M EU Horizon grant.
Designing protected cycling and walking corridors for 36 primary schools across 4 cities. Includes traffic calming, crossing improvements, and real-time air quality monitoring at school gates.
Installing shared rooftop solar on 200 residential buildings. Testing a cooperative ownership model where tenants share generated electricity and maintenance costs proportionally.
Deploying 340 low-cost PM2.5/NO₂ sensors across 6 cities. Open data platform for researchers, planners, and citizens. Real-time alerts when pollution exceeds WHO guidelines.
Planted 28,000 trees in 12 partner cities. Developed the heat-island mapping methodology now used in Phase II. Published the Urban Tree Selection Guide.
Three-year study across 6 Mediterranean cities. Findings published in Environmental Research Letters. Led to policy changes in Porto and Ljubljana.
Evaluated low-emission zone policies in Ghent, Freiburg, and Utrecht. Produced the LEZ Implementation Toolkit, now used by 15+ European cities.
Ghent (BE) · Utrecht (NL) · Freiburg (DE) · Malmö (SE)
Porto (PT) · Barcelona (ES) · Split (HR) · Athens (GR)
Brno (CZ) · Ljubljana (SI) · Tallinn (EE) · Vilnius (LT)