Nature-positive cities are transforming urban life from Brazil to South Korea by restoring waterways, protecting habitats, and building strong partnerships between governments and communities.
Nature-positive cities prove that urban centers can restore ecosystems while expanding infrastructure through innovative green solutions and cross-sector partnerships.
Wildlife populations have dropped by 73% over the past five decades. This dramatic decline stems largely from habitat loss and degradation as cities expand rapidly across the globe.
Urban biodiversity projects in five pioneering cities are showing a different path forward. These cities demonstrate that concrete jungles can transform into places where both people and wildlife flourish.
Barranquilla, Colombia, sits in tropical dry forests and coastal mangroves. The city faces challenges related to flooding, erosion, and pollution common to growing coastal areas. Local leaders have launched a $380 million green investment program aimed at habitat restoration and renewable energy infrastructure.
The initiative recovered over 1.8 million square meters of green spaces. Now 93% of households can reach natural areas within an eight-minute walk. The city built 70 kilometers of naturalized stream channels to prevent flooding while protecting biodiversity.
A biogas plant and solar-powered street lighting reduce carbon emissions. Programs that bring informal waste collectors into the formal economy strengthen both environmental and social goals. These urban biodiversity positive projects in Barranquilla create a replicable model for other Latin American cities facing similar development pressures.
Belém, Brazil, earned recognition as a testing ground for people-centered nature development. The Amazonian city of 1.5 million residents hosts major international climate discussions. Its inhabitants maintain deep cultural ties to the surrounding waterways.
Past development filled wetlands and paved riverbeds, increasing flood risk. Current projects reverse this damage through stream renaturalization without concrete channels. The Macrodrainage of the Matafome Basin Program combines infrastructure upgrades with housing relocation and environmental recovery.
The Community Urban Agroforestry Park creates spaces where residents connect with urban rivers. These urban biodiversity positive projects improve living conditions for more than 70% of city residents while restoring water quality. The emphasis on Amazonian cultural relationships with rivers makes Belém’s approach distinctive.
Durban, South Africa, contains remarkable biodiversity within its boundaries. The metropolitan area supports over 2,200 plant species, 526 bird species, and 80 mammal species. Rapid informal settlement construction threatens these habitats, as the city of 4.1 million people faces a housing shortage of 440,000 units.
The Durban Metropolitan Open Space System protects 95,000 hectares of high-value land and water. The Transformative River Management Programme places urban waterways at the center of climate adaptation planning. This 10- to 15-year initiative prioritizes natural solutions and brings together government departments with private sector partners.
Durban’s urban biodiversity positive projects address the critical challenge of balancing urgent housing needs with ecosystem conservation. The city demonstrates how municipalities can protect habitats even while confronting severe development pressures.
Incheon, South Korea, balances its industrial port economy with the protection of its ecosystem. Fine dust, flooding, and water management issues plague the densely populated city. Strong national support for nature action enabled local leaders to adopt a comprehensive Natural Environment Conservation Action Plan.
The strategy expands protected areas and strengthens wildlife safeguards through public and private participation. Incheon joined the East Asia-Australasian Flyway Partnership, which protects migratory bird habitats across 18 countries, spanning from Siberia to Australia.
This nature-positive city shows how industrial hubs can implement localized nature-based solutions. Strong local governance structures provide the foundation for translating environmental commitments into concrete actions.
San Francisco confronts biodiversity loss driven by housing demand from its booming technology sector. Coastal scrublands, sand dunes, oak forests, and freshwater wetlands are home to rare and endangered species. Fragmented management of these ecosystems and limited community engagement complicate conservation efforts.
Experts recommend that the city create a formal nature action plan that coordinates cross-agency solutions. Community gardens in densely populated neighborhoods and biodiversity education in schools could enhance public engagement. These measures would help balance the need for affordable housing with ecosystem protection.
San Francisco’s experience highlights how even wealthy, progressive cities need coordinated urban biodiversity-positive projects. Technical innovation alone cannot substitute for systematic planning and community participation.
These cities share common strategies that make their urban biodiversity positive projects effective. Strong partnerships between government, businesses, and residents drive success. Natural infrastructure like restored streams and green corridors, provides multiple benefits, from flood control to recreation spaces.
Investing in nature generates returns through improved public health, enhanced climate resilience, and a higher quality of life. Each city adapted solutions to local conditions rather than copying generic templates. Barranquilla’s coastal focus differs from Belém’s riverine approach and Incheon’s industrial port strategies.
These nature-positive cities prove that urbanization need not destroy habitats. Cities can become engines of ecological recovery while meeting human needs. As more urban areas adopt similar approaches through urban biodiversity-positive projects, the global trend of declining wildlife populations may finally reverse.
