ReGreeneration Project Aims to Transform European Cities Through Urban Renaturing

Key facts

• ReGreeneration is a project led by C40 Cities and supported by ARUP, Placemaking Europe, Climato Sfera, and Inetum.
• It operates at the intersection of urban ecology, public health, infrastructure, and neighborhood-scale design.
• The project argues that European cities must fundamentally change to remain livable under accelerating climate pressures.
• Horizon Europe, launched in 2021, is the European Commission's most ambitious research and innovation program.
• Horizon Europe has committed over 95 billion euros to accelerate scientific discovery and address challenges in European cities.
• ReGreeneration is funded by Horizon Europe and unites nine cities, their governing bodies, research institutions, and technology partners.
• The content was written by Olivia Poston and published on April 15, 2026.
• The project addresses how European cities are built, maintained, and experience a changing climate.