Climate change has intensified rainfall in the United Kingdom, causing increasingly frequent floods. Faced with this problem, the country has adopted an unconventional solution: reintroducing beavers in urban areas. These rodents, known as natural engineers, build dams that slow down water flow and reduce the risk of overflow. A notable case occurred in west London, near Greenford tube station, where flooding was constant.
Natural engineering: how beavers control urban water flow 🌊
Beavers build dams with branches and mud, creating ponds that store water and reduce runoff speed. In urban areas like Greenford, these structures retain excess rainfall, preventing drainage systems from collapsing. Additionally, their dams filter sediments and pollutants, improving water quality. Engineers monitor the impact of the colonies using flow sensors and cameras, adjusting the animals' location to maximize their effectiveness without damaging infrastructure.
Beavers with a building permit: the new municipal contractor 🏗️
While humans debate budgets for floodgates and pumps, beavers work for free, only asking for branches and mud. However, they don't meet deadlines or attend meetings. In Greenford, neighbors already call them the neighborhood's new plumbers, although they sometimes mistake a lamppost for a tree and start gnawing at it. At least their work is more efficient than that of some subcontracted companies.