June 23th, 2025
Expansion of El Prat Airport: can development truly be sustainable?
Barcelona is once again at the center of urban, climate, and territorial debates with the proposal to expand Josep Tarradellas Barcelona-El Prat Airport. This project raises not only questions about air connectivity but also reopens a key question for our future: Is infrastructural growth compatible with biodiversity protection and decarbonization commitments?
A high-impact megaproject
The proposal involves an investment of more than €3.2 billion and includes:
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Extending the third runway by 500 meters.
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Constructing a new satellite terminal.
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Remodeling terminals T1 and T2.
Source: El País
The declared goal is to make Barcelona a key intercontinental hub with connections to Asian markets such as Japan, India, and South Korea.
However, the expansion threatens an ecologically sensitive area: La Ricarda, a wetland protected by the Natura 2000 Network, considered essential for the ecological balance of the Llobregat Delta. In fact, the European Commission has already warned that any activity in the area will require strict assessment and explicit authorization
A climate contradiction
Beyond the direct environmental impact, the project presents a stark contradiction with the climate commitments made by Spain and the EU. The expansion would increase CO₂ emissions by raising passenger capacity from 55 to 70 million annually.
All this happens in a context where urban low-emission zones are being promoted and train use is reinforced as an alternative to air travel for short distances. What kind of mobility do we really want to promote?
In our article on regenerative economy, we argued that the future is not about doing “less harm” but about designing systems that generate positive impact. That starts by questioning the model of large public works still based on an extractive, short-term logic.
Viable… and urgent alternatives
Against the “more is better” narrative, there are realistic, more sustainable options better aligned with the Paris Agreement commitments:
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Redistributing air traffic to Girona and Reus airports, strengthening their connection via high-speed rail.
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Promoting train travel for short and medium distances, reducing domestic flight dependence.
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Optimizing the current El Prat airport, improving operational efficiency without occupying new natural areas.
These solutions not only ease pressure on La Ricarda but also fit a strategy of decarbonized and territorially balanced mobility.
A symbol of something deeper
The airport expansion is not just a technical debate: it represents a crossroads between two development models.
On one side, a traditional approach focused on linear growth, numbers, and connectivity at any cost.
On the other, an emerging model that understands the territory as a living system that must be protected, restored, and managed with ecological vision.
As we explained in our article on what it means to be a B Corp, moving towards a regenerative model requires structural coherence: measuring, compensating, and redesigning our infrastructures to serve people and the planet.
Conclusion
At Wegsco, we believe the expansion of El Prat Airport represents a critical opportunity to rethink how future infrastructure is designed. It is not just about reducing negative impacts—it is about generating tangible benefits for the environment, climate, and society.
True sustainability cannot be built on destroyed spaces. In a time of global ecological emergency, choosing regenerative solutions is not a luxury: it is a strategic necessity.
