- Cement and concrete are decarbonising faster than the UK economy, cutting CO2 emissions by 63% versus 1990 levels.
- This decarbonisation provides huge opportunity to provide essential low carbon materials for the government’s growth mission.
- However, construction emissions are in danger of being moved abroad as cement imports rise.
- Careful consideration of materials sourcing by construction supply chains is vital to lower whole life carbon of projects.
CO2 emissions generated by the UK concrete and cement sector are now 63% lower than 1990 levels, driven by a combination of continued decarbonisation efforts by manufacturers but also by falling domestic production, a new report from the Mineral Products Association (MPA) shows.
In an update to its ‘Roadmap to beyond net zero’, the MPA reported that the sector is decarbonising much faster than the UK economy as a whole (54% over the same period). UK CO2 emissions from concrete and cement equated to 6.6 million t in 2023, a 21% reduction compared to 2018.
However, the MPA warned that a rise in cement imports, which now account for a third of the market, is undermining UK commitments to low carbon construction by moving responsibility for emissions abroad. Careful consideration of materials sourcing and procurement by contractors, specifiers and other supply chain partners is vital for construction to play its part in the UK reaching net zero by 2050.
Dr Diana Casey, executive director for cement and lime at the Mineral Products Association, said:
“We have a real opportunity for a low carbon transition in the UK concrete and cement industry which can provide essential materials for the government’s growth mission while retaining and creating high quality jobs and economic value in the UK.
"But this progress is under pressure from deindustrialisation. High UK industrial electricity prices and competition from countries where carbon or environmental pressures are lower mean that imports are making up a greater share of the UK market. The UK is effectively offshoring its emissions, as emissions associated with imported goods consumed here are not recorded in UK territorial CO2 data.
"If the UK is serious about green growth, we need to support demand for lower carbon products and favour domestic procurement of them. Implementing a watertight Carbon Border Adjustment Mechanism (CBAM) that ensures that importers pay the same as domestic producers for their carbon emissions will also help to level the playing field. It will stop us putting good, highly productive jobs in all parts of the UK at risk and keep the benefits of a strong domestic industry on our shores.”
The report, which provides progress against the sector’s roadmap first published in 2020, states net zero can be met through decarbonised electricity and transport networks, fuel switching, greater use of low-carbon cements and concretes as well as Carbon Capture, Use or Storage (CCUS) technology for cement manufacture.
The MPA said that CCUS remains critical to the decarbonisation of cement manufacturing and could deliver 61% of the required carbon savings compared with the 2018 baseline. The Climate Change Committee, the independent adviser to UK Government has been clear that for industrial sectors such as cement with unavoidable process emissions, CCUS technology is key to delivering net zero.
A net negative concrete and cement industry by 2050 is achieved by removing emissions from the manufacturing process and then accounting for the natural, in-use properties of concrete. These include its ability to absorb carbon dioxide from the atmosphere throughout its lifetime, and taking advantage of its thermal properties in buildings and structures to reduce operational emissions associated with heating and cooling.
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