SUEZ has begun construction of a £35 million anaerobic digestion (AD) facility at its Ellington site in Northumberland, part of the infrastructure needed to support the rollout of food waste collections across Northumberland and the North East. SUEZ said circularity has been central to the project's planning and delivery, noting that construction activity accounts for more than a third of global CO2 emissions. The project will also use biochar in ground stabilisation — a stable, carbon-rich material that can store carbon long-term. While established in agriculture and environmental remediation, its use at scale in construction and ground engineering remains relatively novel in the UK. Around 115 tonnes of Arigna biochar will be used to help offset embodied carbon from cement and ground engineering work.