Report

Urban rewilding: The value and co-benefits of nature in urban spaces
In this report, C40 Cities and Arup outline how urban rewilding efforts can restore natural habitats within cities, and offer guiding principles, project typologies, and case studies.
As climate change intensifies and cities grapple with expansion pressures, natural habitats and biodiversity are under threat. Prioritizing urban rewilding offers a way to balance urban development with supporting biodiversity–while at the same time, tackling the climate crisis.
Urban rewilding is the process of restoring natural habitats and their processes within urban spaces and working toward a state of human-nature symbiosis. Even within built-up areas, thoughtful approaches to urban rewilding can support healthy ecosystems and contribute to numerous climate action strategies, like heat mitigation and air quality. This report from C40 Cities and Arup offers guiding principles for urban rewilding, typologies of projects that can be implemented, and over 20 case studies of successful initiatives from around the world.

State of Finance for Nature in Cities 2023
In this publication, UNEP and the Penn Institute for Urban Research outline gaps and opportunities for financing Nature-based Solutions in cities, best practices from around the world, and actions that can be taken to scale up investments in nature.

Strategic City Planning with Nature: Assessing Urban Biodiversity in San José, Costa Rica
UrbanShift’s geospatial analysis for the San José metropolitan region will support urban actors to incorporate biodiversity into planning mechanisms and transform decision-making processes toward valuing the benefits of nature.
Cable Cars: A Low-Carbon Transit Solution for Growing Cities
Medellín’s experience adapting cable cars to an urban context provides an inspiring and practical solution for congestion, air quality and a host of other challenges faced by cities in the Global South.

Freetown Climate Action Strategy
Freetown's first attempt toward delivering on its commitment to the Paris Agreement, this strategy presents innovative, evidence-based solutions to help the city adapt to climate risks while strengthening mitigation efforts.