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The Vietnamese Mekong delta is home to around 20,000,000 people and contributes to 50% of the rice production of the country (90% of the rice export), 65% of its aquaculture products and 70% of its fruit production.

A large part of the Rhine-Meuse delta consists of peatlands which are currently mainly used for dairy farming. Human interventions, such as land reclamation and peat harvesting for fuel, have been taking place for more than 1000 years.

The recently published IPCC report underlines the increasing pressures and challenges that deltas are facing for future development. It is clear that the urgency for deltas worldwide to adapt is greater than ever.

Contact persons of the storyline 'Spatial adaptation in deltas' of the Water, Climate and Future Deltas hub at Utrecht ľ¹Ï¸£ÀûÓ°ÊÓ, a platform for scientists and external stakeholders to jointly work on ensuring the sustainability of our world’s deltas.

Spatial adaptation raises various questions regarding its mainstreaming in policy agendas, the problem of green gentrification and identifying behavioural adaptation.

Citizen participation and knowledge co-production are essential for the development and implementation of effective spatial adaptation measures.

Spatial adaptation falls within the jurisdiction of various public and private actors. For the successful implementation of spatial adaptation measures, responsibilities and roles of the different actors need to be clearly distinguished and defined in policy guidelines.

Nature-based solutions are inspired and supported by natural processes and are increasingly recognized to provide significant social, ecological and economic benefits for cities in deltas.

Researchers at the Water, Climate and Future Deltas hub have engaged with the challenges of spatial adaptation in cities in deltas and focused on stakeholder involvement and improving institutional settings for implementing spatial adaptation, in particular nature-based solutions as a sustainable adaptation approach in spatial planning.

Public actors and governance researchers can contribute to broadening the debate and addressing preconditions for successful policymaking and implementation of spatial adaptation measures.

Many deltas host large urban areas, including megacities like Jakarta, Dhaka, Shanghai and Bangkok. Climate change negatively affects the livelihoods and health of delta inhabitants through drought, heat and urban flooding.

Contact persons of the storyline 'Drought in deltas' of the Water, Climate and Future Deltas hub at Utrecht ľ¹Ï¸£ÀûÓ°ÊÓ, a platform for scientists and external stakeholders to jointly work on ensuring the sustainability of our world’s deltas.

In recent years, droughts have increasingly become a challenge for delta populations which is projected to further increase in the future. It is therefore imperative to explore efficient, inclusive and integrated drought adaptation strategies.

To mitigate and adapt to increases in drought frequency and severity, researchers at the Water, Climate and Future Deltas hub aim to support future water management decisions in the short and long term in the Rhine-Meuse delta and worldwide.

In many deltas, droughts are projected to last longer and occur more frequently due to climate change and an increasing water demand. Delta populations are now facing the challenge to adapt to these changes which requires decision-making and robust policy making ahead of time.

Contact persons of the storyline 'Flood risk management' of the Water, Climate and Future Deltas hub at Utrecht ľ¹Ï¸£ÀûÓ°ÊÓ, a platform for scientists and external stakeholders to jointly work on ensuring the sustainability of our world’s deltas.

Flood risk is expected to increase in the future. Sea level rise, more frequent peaks in river discharges and extreme weather events pose a challenge to decision makers dealing with flood risk management.

Like the Netherlands, Belgium, France and the United Kingdom are increasingly embracing the idea of integrated flood risk management. Nevertheless, with different physical conditions and political climates, they employ different strategies.

Coastal forelands are unprotected areas between the sea or estuary and a dike, and are common features in the Rhine-Meuse delta. Most forelands consist of a high-lying salt marsh alongside a dike with lower unvegetated mud flats lying in front.

Dike constructions protect the Rhine-Meuse delta against river flooding and storm surges coming from the North-Sea. Dike failure is not always related to flooding but can also result from subsurface and groundwater mechanisms.