A data-driven approach coupled with greater use of nature-based solutions offers a promising path for UK water, says Ryan Pearson, head of strategy at Metasphere, ahead of his panel appearance at the WWT Wastewater Conference on 28 January 2025.
Data for nature
Currently, the default option to reducing stormwater overflows into rivers and seas is to install concrete storage tanks, which are costly and, while effectively holding back water, provide few additional benefits. By using data insights, water companies can implement nature-based solutions (NbS) at scale: holding back rainfall in the catchment, engaging communities and other stakeholders, and achieving positive outcomes for wildlife, people and the environment.
Data provides the opportunity to examine the causes of overflows and identify where the hydraulic overload is coming from. Could it be infiltration of groundwater into the sewer network, or the misconnection of household appliances?
Once all sources have been identified, decisions can be made on which prevention interventions should be prioritised. This approach opens-up opportunities for greater use of nature-based solutions, because the data can create a robust business case.
Instead of pouring more concrete, attractive green spaces can be created, engaging stakeholders and local communities and creating greater biodiversity. In the context of climate change, the impact of cloudbursts – localised intense rainfall, and urban heat-spots can be mitigated, alongside reducing overflows to surface waters.

