Floods and droughts: an EPIC response to these hazards in the era of climate change

Published: 17 June 2021

How can we create a safer, more prosperous future for the world's 7.7 billion people? Today, on Desertification and Drought Day, the World Bank and Deltares present an ambitious Flagship Report: "An Epic Response: Innovative Governance for Flood and Drought Risk Management" as their contribution.

Hazards don’t need to become disasters

Floods and droughts are some of the most tangible – and devastating – consequences of the climate crisis. They increasingly affect communities across the planet. The toll in human suffering and in economic costs is staggering. It is crucial that societies adapt and that governments prioritize, accelerate, and scale up their response mechanisms in the coming decade. “Over the last few decades, many countries have made significant improvements in managing floods and drought” says Ana Nunez Sanchez, one of the report authors “but unfortunately, those efforts are not enough, and we are falling behind.”

The World Bank and Deltares present a new perspective to better manage hydro-climatic risks, referred to as an “EPIC Response”. This perspective looks at floods and droughts not as independent events but rather as different ends of the same hydro-climatic spectrum that are inextricably linked. It provides a comprehensive framework to help national governments lead a whole-of-society effort to manage these risks. The term EPIC Response is a mnemonic for remembering the key elements of this perspective, as shown in the accompanying graphic—it also connotes the level of effort that is required.

An Epic Response is a whole-of-society effort

National governments must lead a whole-of-society effort to managing hydro-climatic risks. National agencies need to engage with businesses, civil society, and households—and focus on poor and marginalized groups—to ensure effective programs. They need to prioritize education and risk communication, tap into the expertise of the research community, and ensure open access to data and information. “There is a growing recognition of the need to develop policy-informed science and science-informed policy to deal with floods and drought. This is an area where Deltares has decades of experience collaborating with national agencies to generate effective science applied to flood and drought management”, says Ana Nunez Sanchez.

National agencies must fulfill their specific mandates but also need to collaborate to achieve an EPIC Response

If national agencies are not performing well or if interagency collaboration is weak, then there will be significant gaps in a country’s efforts to reduce hydro-climatic risks. An EPIC Response seeks to address these issues with the aim of efficiently reducing the economic, social, and environmental costs of floods and droughts. Ana Nunez Sanchez: “For an EPIC response the whole flood and drought management system is more important that the parts”.

Raising to the Challenge

A key message of this report is that managing the growing impacts of the changing climate is not an insurmountable challenge. The policy research and the four case studies included in the report show that we can march towards more effective response to the increasing risks of floods and drought. The hope is that the new knowledge and examples in the report twill both inspire and guide more progress, enabling government both to reduce the huge toll from disasters and to take advantage of the opportunities to create a more livable and prosperous planet.

Launch today

The report is launched today by a webinar opened by Juergen Voegele (vice-president sustainable development of the World Bank), Ibrahim Thiaw (executive secretary of the UN Convention to Combat Desertification) and Kitty van de Heijden, the Dutch Director General for International Cooperation. Henk Ovink, Special Envoy for International Water Affairs, led the discussion.


Ana Nunez Sanchez is an expert advisor in Deltares Resilience and Planning Department and a Manager for the Adaptation and Implementation Research Program. In her 15 years of experience, Ana has worked with international institutions, national government, civil society organization and the private sector to implement water resources and coastal management development projects in Latin America, South-East Asia, and the Middle-East. Before joining Deltares, Ana worked for the World Bank, the Inter-American Development Bank and the World Resources Institute.

“Climate hazards do not have to become disasters if flood and drought risks are properly managed. The EPIC Response Framework provides a new perspective for countries to proactively manage these risks, supporting the agencies working on flood and drought to collaborate in a whole-of-society effort. I encourage you not only to read the report but to use it to help governments raise to one of the most pressing challenges of our time”, says Ana Nunez Sanchez.


Also watch the following presentations:

Date Event and presentation
November 9, 2021



COP 26: Marrakech Partnership Climate Action Event
November 11, 2021 COP26: Water Pavilion – Disaster Risk Reduction day. A new perspective to Flood and Drought Risk Management

(session Deltares experts at 7 hours 54 minutes)

October 27, 2021 Global Flood Partnership Conference

An Epic Response: Innovative Governance for Flood and Drought Management – YouTube

23 August, 2021 SIWI: EPIC Response National Strategic Plans