A Procurement Strategy for Low-Carbon Concrete and Construction
Demand for cement—the key ingredient in concrete—is soaring on the wings of a global infrastructure and building boom that is driven by the expansion of developing and developed economies alike. But cement manufacturing poses multiple challenges. Namely, it will not be possible to meet climate change goals unless steps are taken to reduce the CO₂ emissions that result from cement manufacturing, which is responsible for approximately 7% of the global total.
Attempts to address this looming concern must begin with the public sector. Governments and agencies at the national, regional, and local levels are responsible for 40% to 60% of concrete sales and 20% to 30% of the construction industry’s revenues. The public sector can lead the transition toward low-carbon concrete by shifting more rapidly to green procurement policies. Governments can develop regulations and business environments that encourage and, at times, mandate the procurement of low-carbon concrete and the adoption of low-carbon construction methods.
A new report explores the activities of six countries (Sweden, Germany, France, the Netherlands, UK, and US) that are leading the charge to develop rules for low-carbon concrete and construction procurement. This report—a joint effort by the World Economic Forum, the Global Cement and Concrete Association, and Boston Consulting Group—is based on interviews with construction and procurement experts from the public and private sectors in the countries we studied. The report examines the tools and regulations that have been adopted to support the shift to low-carbon concrete.
Our analysis suggests a blueprint for low-carbon concrete and construction that is focused on a carbon reduction foundation and procurement policies.
- The foundation is a set of common standards for assessing the carbon emissions of concrete, other building products, and completed projects. It generally includes a product database for collecting and storing carbon emissions information and baselines. Similar databases and baselines can also be established for whole projects.
- Procurement policies determine rules for the disclosure of carbon in concrete products and projects, which are essential for data collection in the foundation stage. In addition, procurement policies are needed to set targets for carbon emissions reduction. To meet these targets, mandates and incentives should be adopted.
The report describes the primary issues that policymakers, procurement leaders, and the private sector must address to design and implement low-carbon-concrete standards, tools, and policies. Among these issues is the need to measure carbon impacts across the life of a project, even after its completion. We also explore the obstacles in scaling green concrete and construction globally.
Procurement programs should be measured and refined over time, becoming more ambitious as the technology advances for carbon capture and carbon emissions measurement, among other things. Ideally, these improvements to procurement programs should align with the targets set forth in the Paris Agreement. In addition, programs must be tailored for developing markets, where much of the future demand for concrete and infrastructure will lie. International collaboration is necessary to accelerate progress and ensure that minimum shared guidelines are adopted. These guidelines should emphasize the disclosure of embodied and operational carbon in concrete and construction projects, set ambitious and credible targets, and incentivize low-carbon design.