Unearthing potentials for decarbonizing the U.S. aluminum cycle.

摘要: Global aluminum demand is anticipated to triple by 2050, which time global greenhouse gas (GHG) emissions are advised be cut 50–85% avoid catastrophic climate impacts. To explore mitigation strategies systematically, a dynamic material flow model was developed simulate the stocks and flows of U.S. cycle analyze corresponding GHG emissions. Theoretical realistic reduction potentials were identified quantified. The total for in 2006 amount 38 Mt CO2-equivalence. However, has increasingly relied on imports embodied various products. in-use stock still growing fast most product categories, limits current scrap availability recycling saving. Nevertheless, there large emission potential through recycling. from “100% old collection” “low energy” each calculated higher than all process technology potential. Tota...