London Had A Flooding Problem, Its Solution Had Been Extinct There For 400 Years

A few hundred feet from a McDonald's and a strip mall in Ealing, West London, sandwiched between busy roads, a lush urban wetland is being built by a group of unusually industrious residents: beavers. Local authorities had been considering a conventional engineering solution to the area's chronic flooding problem, a concrete reservoir carved out by heavy machinery, when a group of conservationists proposed something different. In 2023, the Ealing Beaver Project introduced a family of five wild beavers to a 24-acre stretch of land called Paradise Fields, which veterinarian and project leader Sean McCormack described as a forgotten and neglected space. The beavers built dams, created ponds, dug canals that radiate outward like a spiderweb across the valley floor, and turned the landscape into a natural sponge. By their second winter on site, flooding in the target area had stopped for the first time in a decade, including the chronic inundation of the nearby Greenford Tube station that had plagued local residents for years.

Wild beavers went extinct in the UK approximately 400 years ago, hunted for their fur, meat, and musk glands, and what has happened at Paradise Fields since their return has surprised even the people who proposed bringing them back. The beavers' engineering has created a mosaic of different habitats, drawing in birds, butterflies, bats, freshwater shrimp, and fish to an area that was previously too degraded to support them. The original family of five has grown to eight, with a new litter of kits born in spring whose number is not yet known because they have not yet emerged from their lodge. Emily Fairfax, an assistant professor of geography at the University of Minnesota who studies beaver hydrology, describes the animals' ability to address flooding, drought, and even wildfire risk as staggering, and says there is a running joke in the beaver science community that if you have a problem, there is a beaver for that. McCormack says the Ealing project is demonstrating that it is not a wild idea to live alongside beavers in a dense city, and that what is growing at Paradise Fields is proof that nature-based solutions can work in environments that most people would never expect them to.

Source:https://www.cnn.com/2026/06/18/climate/beaver-rewilding-ealing-london-flooding