The dynamic global aluminium use across production systems to consumption systems
该研究追踪了2007至2017年全球九个区域的铝使用情况，发现中国是最大消费国，交通和建筑占主导，服务业份额上升，建议未来政策应关注服务业去物质化以减少间接铝使用。
The global aluminium (Al) industry is traditionally known for high energy consumption and intensive emissions. Achieving circularity and dematerialisation in this industry requires joint efforts from both, the production and consumption sides. This study combines dynamic material flow analysis and an environmentally-extended multi-regional input-output analysis to track global Al use across nine regions from 2007 to 2017. Results show that China became the largest Al consumer in 2001, using ∼460 Mt. over 50 years (26 % of global use) and exporting mainly to North America and Europe. Transportation and Building & Construction dominate Al end-use (∼50 %), while the service industry's share rose to 17 % in 2017. While current policies on Al decarbonisation primarily focus on controlling the global Al production, future policies should aim the dematerialisation of the service industry to reduce indirect Al use. Our results highlight important regional and sectoral differences, which must be consider when formulating future decarbonisation strategies. • This study traces global aluminium use across nine regions, highlighting China's dominance and the need for policy shifts towards dematerialisation and global cooperation for decarbonisation.