Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what research his Department has undertaken on the causes of trends in the instances of flooding in cities.

Defra and the Environment Agency use research to help policy makers and practitioners develop options to better manage flood and coastal erosion risk management.

The Joint Flood and Coastal Erosion Risk Management Research and Development Programme undertakes research on flooding. The Programme is overseen by the Environment Agency, Defra, Natural Resources Wales and Welsh Government on behalf of all risk management authorities in England and Wales. The Joint Programme has funded new projections for sea level rise to the year 2300 - which are critical for our long-term planning, including in coastal cities. It has also funded new projections of how climate change will affect river flooding, and in 2020 we published a synthesis of current knowledge on sources of river and coastal flooding in the UK. More information can be found on Gov.uk.

Defra has previously commissioned research to review the causes of flooding events that Lead Local Flood Authorities have assessed under Section 19 of the Floods and Water Management Act 2010. This research provided an understanding of the principal factors contributing to flooding from surface water in England and Wales since 2010.

Finally, the Environment Agency is developing a new National Flood Risk Assessment (NaFRA2) to provide a wide range of more accurate data, covering risk from rivers, the sea and surface water. The new Assessment will be published in 2024 and will provide a refreshed evidence base to better inform our management of risk.