CURB was founded by Ben Morris in October 2021 in response to a significant pollution incident on the Lower Brent, and is part of a growing movement to regenerate the UK’s badly degraded rivers.

CURB, working in association with Thames21, and together with local volunteers including LAGER Can has removed around 100 tonnes of rubbish from the river – including over 500 car tyres – has initiated an invasive species replacement programme, planting hundreds of reed and rush rhizomes, reports regularly to Thames Water and the Environment Agency on pollution, is building connections with other volunteer groups throughout the Brent Catchment, and is currently trialling a self-started network of water quality sensors with the support of the Environment Agency.