Image Description: Landscape view of the River Dart in Devon. Photo by Valentina Sotnikova on Unsplash
England’s water environment faces a perfect storm
The Environment Agency has published their latest Chief Scientist’s Annual Review 2025, highlighting how they are using science to support the country’s ambition for sustainable growth and respect the nature that underpins it.
This year’s review presents a stark assessment: England’s water environment is under mounting pressure from climate change, population growth, and competing demands. The review frames these as a “too much, too little, too dirty” challenge – too much flooding, too little water during droughts, and persistent quality concerns from multiple pollution sources. The review emphasises that science must play a central role in managing these risks.
Flooding and drought demand smarter, nature-led responses
The review highlights significant advances in flood risk modelling and monitoring, helping to inform investment and management strategies across catchments. Crucially, the EA signals a shift away from reliance on traditional engineering alone, with nature-based approaches such as floodplain restoration, natural water retention, and working with natural processes increasingly seen as essential to long-term resilience. On drought, the review stresses the importance of sustainable abstraction management and improved water efficiency, with scientific research enabling more accurate resource forecasting and allocation.
Data and digital tools driving smarter water management
A notable theme is the EA’s growing use of enhanced digital systems. The expansion of integrated, “analysis-ready” environmental datasets is enabling more consistent modelling, improved forecasting, and more robust evaluation of interventions. This stronger evidence base is increasingly underpinning decisions across flood risk, water resources, and pollution management.
Tackling water quality at catchment scale
The review outlines ongoing efforts to address pollution from agriculture, wastewater, and urban runoff, with the EA moving towards data-driven monitoring of pollutants across rivers, lakes, and groundwater. Rather than focusing on isolated sources, the review emphasises understanding cumulative impacts and tackling pollution at a catchment scale.
Nature-based solutions moving from principle to practice
The Chief Scientist’s review points to growing incorporation of wetlands, floodplain restoration, and catchment-sensitive farming into both policy and practice. This reflects a broader shift toward working with natural systems rather than against them, to simultaneously improve water quality, reduce flood risk, and enhance biodiversity.
Evaluation: understanding what actually works
Perhaps the most pointed message for the sector is the review’s emphasis on rigorous evaluation. The EA is placing growing importance on understanding which environmental schemes, regulatory approaches, and investment decisions actually deliver results, to ensure resources are directed where they generate the greatest benefit. This signals an expectation that evidence of impact will matter more, not less, in the years ahead.