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Circular Bioeconomy Toward Net-Zero Emission Urban Systems Through FEW Nexus Approach

In: Handbook of Circular Bioeconomy

Author

Listed:
  • Katia Sakihama Ventura

    (Federal University of São Carlos, Department of Civil Engineering)

  • Gabriela Oviedo Mena

    (Continental University, Department of Civil and Environmental Engineering)

  • Laura de Oliveira Battistini Pestana

    (Federal University of São Carlos, Postgraduate Program of Urban Engineering)

  • Jie Zhuang

    (The University of Tennessee, Department of Biosystems Engineering and Soil Science)

Abstract

The circular bioeconomy (CBE) presents a pathway for cities to transition from linear consumption models to sustainable urban systems. By repurposing agricultural by-products, industrial waste, and municipal residues, CBE fosters regenerative cycles, reducing environmental impact, and enhancing resource efficiency. However, technological limitations, governance gaps, and financial barriers hinder large-scale implementation. The Food–Energy–Water (FEW) nexus approach is highlighted as an integrated framework for optimizing urban metabolism, facilitating synergies among energy production, water recycling, and food security. Despite its potential, challenges arise due to insufficient policy support, lack of technical expertise among municipal authorities, and the concentration of investments within the private sectors. Cities account for 70% of global carbon emissions and 75% of natural resource consumption, underscoring the urgency of mitigating environmental degradation. The study underscores the importance of multilevel governance, inclusive policies, and technological innovation to accelerate urban circularity. Future research should quantify the long-term benefits of integrating CBE and FEW, while aiming for net-zero emissions by 2050, ensuring equitable access to sustainable solutions.

Suggested Citation

  • Katia Sakihama Ventura & Gabriela Oviedo Mena & Laura de Oliveira Battistini Pestana & Jie Zhuang, 2026. "Circular Bioeconomy Toward Net-Zero Emission Urban Systems Through FEW Nexus Approach," Natural Resource Management and Policy, in: David Zilberman & Jie Zhuang & Justus Wesseler & Madhu Khanna (ed.), Handbook of Circular Bioeconomy, chapter 0, pages 359-395, Springer.
    • Handle: RePEc:spr:nrmchp:978-3-032-07112-5_17
    DOI: 10.1007/978-3-032-07112-5_17
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