Aluminium for Climate: Exploring pathways to decarbonize the aluminium industry

The aluminium industry generates over 1.1 billion tonnes of CO2e annually, representing approximately 2% of global anthropogenic emissions. To reach net-zero by 2050, the report identifies three priority areas: transitioning electricity consumption (over 60% of the footprint) to renewables or CCUS, decarbonizing direct process emissions (25–30% of emissions) via non-carbon anodes and fossil-free heat, and increasing the recovery of post-consumer scrap to reduce primary production needs by up to 15%. The report emphasizes that collaborative R&D and value-chain partnerships are essential to overcome slim profit margins and high capital costs.

• The aluminium industry is responsible for approximately 2% of global anthropogenic greenhouse gas emissions, producing more than 1.1 billion tonnes of CO2e annually. Under a business-as-usual scenario, these emissions are predicted to increase by 50% by 2050.
• Electricity consumption is the largest source of emissions, accounting for more than 60% of the industry's carbon footprint. Decarbonization of this area relies on transitioning to renewable energy or implementing carbon capture, utilization and storage (CCUS) technologies.
• Direct process emissions account for 25–30% of sectoral emissions. The most impactful solutions include developing non-carbon (inert) anodes, which release oxygen instead of CO2, and transitioning to fossil-fuel-free technologies for industrial heat and steam.
• Increasing the collection and recovery of post-consumer aluminium scrap can reduce the requirement for carbon-intensive primary aluminium by up to 15%. Recycled aluminium production requires only 5% of the energy used for primary production.
• The industry faces significant financial barriers to decarbonization due to slim profit margins, with an average EBITDA margin of 5–10% in 2019. This makes funding the high capital investment for new power sources difficult.
• China is a primary driver of sectoral emissions, with coal-powered electricity for primary smelting accounting for approximately 58% of the sector's carbon footprint in 2019.
• Aluminium demand is projected to grow by over 50% by 2050 to 298 megatonnes, driven by urbanization, electric vehicles, and the expansion of renewable energy technologies, such as solar PV, where aluminium makes up over 85% of most components.
• Successful decarbonization requires collaborative action across the value chain, including shared R&D for inert anodes and CCUS, and the establishment of common standards for carbon reporting to provide clear market signals for low-carbon aluminium.

APA

World Economic Forum (2020). Aluminium for Climate: Exploring pathways to decarbonize the aluminium industry. https://www3.weforum.org/docs/WEF_Aluminium_for_Climate_2020.pdf

Chicago

World Economic Forum. Aluminium for Climate: Exploring pathways to decarbonize the aluminium industry. 2020. https://www3.weforum.org/docs/WEF_Aluminium_for_Climate_2020.pdf.

Wikipedia

{{cite report |author=World Economic Forum |title=Aluminium for Climate: Exploring pathways to decarbonize the aluminium industry |date=November 2020 |url=https://www3.weforum.org/docs/WEF_Aluminium_for_Climate_2020.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{worldeconomicforum2020aluminium, author = {{World Economic Forum}}, title = {{Aluminium for Climate: Exploring pathways to decarbonize the aluminium industry}}, institution = {World Economic Forum}, year = {2020}, month = nov, url = {https://www3.weforum.org/docs/WEF_Aluminium_for_Climate_2020.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }