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Energy demand and greenhouse gas emissions associated with primary aluminum production in the United States and Canada have declined significantly in recent years according to a new, peer-reviewed life-cycle assessment (LCA) report released by the Aluminum Association.
The study covers all life cycle impacts from aluminum production through semi-fabrication and finds major improvements, particularly in terms of more sustainable production.
According to the report, the energy needed to produce a single metric ton of primary (new) aluminum has declined 11 percent since 2005 and 26 percent since 1995. The industry’s carbon footprint has fallen even more dramatically, declining 19% since 2005 and 37% since 1995.
A voluntary effort undertaken by the industry in the early 1990s with the Environmental Protection Agency (EPA) has reduced emissions of perfluorocarbons (PFC), a greenhouse gas, by nearly 85%. The new findings are based on a multi-year LCA study examining the environmental impact of aluminum production.
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