Investigating Whether Extreme Events Trigger Nexus Effects and Applying Nexus Methodological Framework to Increase Urban Resilience

Kofinas D., Kazezyılmaz Alhan C. M., Adamos G., Caucci S., Radjenovic T., Đorđević D., ...Daha Fazla

10th Anniversary Conference | ENVECON 2014 – 2024 Economics of Natural Resources & the Environment, Volos, Yunanistan, 6 - 07 Aralık 2024, ss.1, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Volos
  • Basıldığı Ülke: Yunanistan
  • Sayfa Sayıları: ss.1
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

Climate change is already increasing the frequency of extreme events, significantly impacting human societies. This is particularly evident with trends in population growth, urbanization, and land use changes, which often heighten the vulnerability and exposure of human systems. The interconnectedness of critical entities that support human societies makes urban settings especially susceptible to domino effects triggered by a single initial shock.

The aim of this study is to understand and assess the Nexus effects of extreme events related to climate change and other natural hazards, such as earthquakes, volcanoes, and tsunamis. An extended Water-Energy-Food+ Nexus schema is considered, incorporating Ecosystems, Climate, Soil, Transportation, Land Use, Health, and Information and Communication Technologies.

The analysis synthesizes case studies of actual extreme events that have occurred over the last few decades, primarily in Europe. It considers the implications across three timescales: short-term, mid-term, and long-term. This study employs a modified Nexus-oriented literature review approach, examining nine different types of extreme events: droughts, earthquakes, floods, heatwaves, landslides, tornadoes, tsunamis, volcanoes, and wildfires. A minimum of three case studies is analyzed for each type of extreme event.

For each case study, the Nexus tree approach is applied. The synthesis of the Nexus trees for each extreme event will create the Nexus signature of that specific event. Based on these signatures, an inventory of recommendations for decoupling the interlinkages will be developed. These recommendations will be categorized into operational, tactical, and strategic levels, corresponding to the three impact horizons. Special focus will be given to Nature-based solutions.

The ultimate ambition of the NEXUSNET taskforce is to provide tangible tools and capacity to improve urban resilience against climate change-induced and other extreme events.