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NEWS & MARKET10 NEWS & MARKET AAC WORLDWIDE %u2022 2.202650% carbon intensity reduction by 2030Case study: How H+H UK is cutting carbon in AACIn the context of rising regulatory pressure and increased market scrutiny of embodied carbon, H+H UK %u2013 a leading manufacturer of AAC blocks for the housebuilding sector %u2013 is using lifecycle assessment (LCA) and environmental product declarations (EPDs) to drive systemic, measurable emissions reductions. As part of a wider strategy to achieve net zero carbon emissions by 2050, H+H UK has committed to a 50% reduction in emissions intensity (kgCO%u2082e/m%u00b3) across Scopes 1, 2, and 3 by 2030.This approach isn%u2019t just symbolic. It%u2019s backed by granular carbon modelling, rigorous third-party verification, and a continuous feedback loop between operational data and decarbonisation actions. For those working across the construction value chain %u2013designers, contractors, buyers, sustainability consultants %u2013 H+H UK%u2019s strategy offers a scalable, transparent model for low-carbon manufacturing.Quantifying carbon: From ambition to executionH+H UK%u2019s roadmap outlines a phased reduction strategy:%u2022 50% reduction in total emissions intensity by 2030%u2022 46% reduction in absolute Scope 1 and 2 emissions%u2022 41% reduction in Scope 3 emissions intensity, with lime and cement identified as the dominant contributorsScope 1 and 2 reductions are being delivered through factory upgrades, including:%u2022 Installation of hydrogen-compatible gas burners, reducing over 600 tonnes of CO%u2082 annually at a single site%u2022 Electric vehicle fleet roll-out, including forklifts and company vehicles%u2022 On-site renewable generation, with a wind turbine supplying 17% of the firm%u2019s UK electricity demand in 2024%u2022 100% renewable electricity usage across all sites%u2022 LED lighting upgrades, saving 200,000 kWh annuallyOn Scope 3, the company is collaborating with suppliers such as Singleton Birch and Cemex, who have their own decarbonisation pathways %u2013 including plans to build a hydrogen electrolyser, use of renewable electricity, and the adoption of alternative fuels.Why EPDs and LCA are central to the strategyFor H+H UK, EPDs are not simply regulatory artefacts %u2013they are decision-making tools.%u201cThey help with that level of continuous improvement. Even if you don%u2019t publish updates annually, they give you clarity on where to act. When we modelled one supplier%u2019s specific EPD instead of using generic data, the impact was a 5% carbon reduction.