Within the CASCADE project, partners across Europe are exploring how biochar can be applied in real-world contexts to address environmental challenges. A recent activity in France highlighted the potential of biochar in urban water management, particularly in relation to rainwater handling and resilient city design.
The focus of the activity was on demonstrating how biochar can be integrated into sustainable drainage systems, supporting cities in managing increasing volumes of rainwater while improving environmental performance. Rather than presenting isolated solutions, the approach connects material, application, and system thinking.
Biochar as Part of Urban Solutions
Urban environments are facing growing pressure due to:
- Increased surface sealing and reduced water infiltration
- More frequent heavy rainfall events
- Declining soil quality in green spaces
Biochar offers several properties that can contribute to addressing these challenges:
- Improved water retention and infiltration
- Enhanced soil structure and plant health
- Potential for long-term carbon storage
These characteristics make biochar a promising component in nature-based solutions and urban green infrastructure.
From Application to System
What becomes clear through the example from France is that biochar is most effective when considered as part of a broader system. This includes:
- The sourcing of biomass
- The conversion process into biochar
- The integration into specific applications such as water management
By connecting these elements, CASCADE aims to support the development of local value chains that are both environmentally and economically meaningful.
A Step Towards Scalable Solutions
The activity demonstrates how practical applications can help move from theory to implementation. By testing biochar in real environments, project partners contribute to building a better understanding of its potential in urban settings.
As cities continue to look for sustainable and adaptable solutions, biochar-based systems may play an increasing role in shaping resilient urban landscapes.
