Globally, 70% of Average Annual Losses (AAL) are attributed to climatic hazards - rising temperature extremes, increased flooding, and water scarcity and security - marking a significant impact on urban areas. Notably, flooding has been the most prominent disaster, accounting for 44% of total reported events over the last two decades, with 81% of urban settlements being prone to floods globally (CDRI, 2023). According to the World Economic Forum (2022), flooding has been identified as the most common natural hazard across more than 1600 cities in the world. Moreover, water scarcity in cities is a critical crisis driven by rapid urbanization, over-extraction of groundwater, climate-induced erratic rainfall, and inadequate infrastructure. The adverse impacts of disasters and climate change are felt most acutely in cities. In the light of increasing climate hazards and their impact on infrastructure, the imperative to adapt urban infrastructure for risk reduction cannot be overstated. The inaction on resilient infrastructure could cost cities US$ 314 billion annually by 2030 (World Bank Group, 2016).

CDRI, in partnership with Ministry of Infrastructure and Water Management of Government of the Netherlands and Deltares, along with African Union Commission (AUC), National Disaster Management Authority (NDMA), India and ICLEI South Asia, is organising a three-part webinar series on Urban Water Infrastructure Resilience. The webinar series will highlight the key aspects of building resilience of urban water infrastructure systems to manage floods and water scarcity in Africa and South Asia.

The webinars include the following topics:

• Introduction to urban water infrastructure resilience and an overview of the four modules.
• Module 1: Risk Assessment for infrastructure resilience and urban development.
• Module 2: Nature-based Solutions (NbS) for urban resilience — their benefits, integration with traditional systems, and lessons from global case studies.
• Module 3: Multi-level Governance for water-resilient cities — aligning disaster and climate risk management with water governance.
• Module 4: Sustainable Finance for resilient urban water systems — exploring best practices, strategies, and challenges.

The second webinar in the series will cover the first two themes of the UWIR module – Risk assessment and Nature-based solutions. The first part of this webinar on Risk assessment aims to equip participants with a comprehensive understanding of disaster risk and its key components, including natural hazards, exposure, and vulnerability. Participants will explore the various drivers of flood hazards and their influence on risk levels, while gaining insights into the data requirements and quality considerations necessary for developing robust flood hazard and impact models. The session will also introduce relevant data sources and provide an overview of available hazard modelling approaches. In addition, participants will learn about different risk metrics related to physical assets, infrastructure systems, and societal well-being, and how these metrics can inform risk-based decision-making. By strengthening their understanding of flood risk assessment, participants will be better positioned to support risk-informed planning, decision-making, and the design of resilient infrastructure systems.

The second part of this webinar on Nature-based Solutions (NbS) will introduce participants to the concepts and applications of Nature-based Solutions (NbS) and their role alongside traditional grey infrastructure approaches. It will provide an overview of different NbS options, their costs and benefits, and key considerations for effective implementation, long-term sustainability, and scaling. Drawing on global case studies, the session will highlight practical applications of NbS, approaches for community engagement and ownership, and strategies for developing a strong business case. Participants will also gain familiarity with available tools, resources, and guidance to support the planning and implementation of NbS in diverse geographic contexts.

Participants are also encouraged to undertake the online self-paced e-Learning Course on Urban Water Infrastructure Resilience available on the DRI Connect Platform. Designed for a broad global audience, the course is free of cost and offers accessible, easy-to-comprehend content along with evaluation quizzes that builds foundational understanding on the topics of risk assessment, nature-based solutions, multi-level governance, and sustainable finance.