S4E02: Could nature help solve the UK’s sewer overflow challenge?

We’ve all seen the headlines—over the past decade, the UK has seen record-breaking rainfall, with climate change driving more intense weather. But our drainage infrastructure, much of it built over a century ago, was not designed to cope with these extremes. Combined sewer overflows (CSOs)—originally developed to prevent flooding by discharging excess water when sewers reach capacity—are now being…