Regenerative urbanism: polluting less is not enough

Regenerative urbanism is an approach that goes beyond sustainability by proposing that cities should not only minimize their environmental impact but also play an active role in restoring damaged ecosystems. This perspective suggests that cities should become environments that foster ecological, social, and economic regeneration, aligning with natural cycles and promoting biodiversity. Authors such as Herbert Girardet and Jason McLennan have explored this concept, emphasizing its importance in the context of climate change and the global environmental crisis. Herbert Girardet, in his work Cities, People, Planet, highlights that traditional sustainability has mainly focused on reducing resource consumption and emissions but does not address the damage already inflicted on ecosystems.

Girardet argues that to reverse environmental damage, a regenerative approach is necessary—one that repairs and revitalizes natural systems. This implies redesigning cities so that they integrate harmoniously with local ecosystems, using green infrastructure that mimics natural processes, such as restoring wetlands and implementing green roofs and walls that absorb carbon and promote biodiversity. Jason McLennan, a pioneer of regenerative design and author of The Philosophy of Sustainable Design, goes a step further by proposing that cities can become agents of positive environmental change. McLennan introduces the concept of the “Living Building Challenge,” a framework that establishes standards for constructing infrastructure that is environmentally positive.

According to McLennan, regenerative cities should not only be self-sufficient in energy and resources but should also improve the quality of air, water, and soil in their surroundings. To achieve this, he proposes comprehensive planning that ranges from architectural design to resource management. Both authors agree that regenerative urbanism is not limited to physical or environmental interventions but also involves a social dimension. Girardet emphasizes that regenerative cities must focus on building resilient communities, where citizens actively participate in decision-making processes related to their urban environment.

The social side of regeneration

This fosters social cohesion and a sense of belonging, which are crucial for ensuring that regenerative efforts are sustainable in the long term. Regeneration should apply not only to ecosystems but also to the social and economic structures of cities. McLennan, for his part, adds that regenerative cities can become engines of economic innovation and creativity. By designing spaces that promote the circular economy and regenerative practices, cities can attract entrepreneurs and companies committed to sustainability.

This economic transformation, according to McLennan, should be supported by public policies that encourage the use of renewable energy, the reuse of materials, and the creation of green jobs, ensuring that economic growth aligns with regenerative principles. However, both Girardet and McLennan warn that implementing a regenerative urbanism model requires a shift in mindset and in approaches to urban planning. Girardet notes that cities must abandon the paradigm of unlimited growth and adopt one of continuous regeneration, where the well-being of the urban ecosystem becomes the primary indicator of success. McLennan emphasizes the importance of involving all actors—from governments to citizens and businesses—to make regenerative urbanism an effective reality.

What the shift demands

In conclusion, regenerative urbanism, according to Herbert Girardet and Jason McLennan, represents a transformative vision of how cities should function in the twenty-first century. This approach not only seeks to minimize environmental impact but also to restore ecosystems and promote urban development that is socially just and ecologically positive. Although the challenges are significant, the authors agree that with proper planning and commitment from all sectors, it is possible to create cities that are not only sustainable but also regenerate and strengthen the natural and social environments in which they develop.