Infinitely recyclable aluminum can more sustainable than ever, shows LCA

New life-cycle analyses from PE Americas for the Aluminum Association shows a carbon footprint reduction of 44% over the last 17 years.

PE Americas has recently completed “one of the most comprehensive and transparent life-cycle analyses (LCA) ever conducted by an industry group for the Aluminum Association.” The independent study of aluminum cans, carried out by PE Americas, part of strategic consultancy PE INTERNATIONAL, was undertaken in part to respond to Walmart’s packaging scorecard, which calls for its suppliers in all sectors to reduce their carbon footprint.

The results confirm major reductions in the aluminum can’s product carbon footprint and energy use over the last 17 years and have been provided to both the Environmental Protection Agency (EPA) and Walmart. Major findings include:
• Reduction in overall carbon footprint of the aluminum can by 44%
• 30% less energy usage
• Reduction in package weight of 15%
• 68% total recycled content, the highest of any beverage package material

“The data shows that we are using significantly less material and less energy to produce same-size beverage cans as compared with 17 years ago,” says Steve Larkin, president of The Aluminum Association. “The aluminum industry has made tremendous gains in sustainability. The aluminum can is more sustainable than ever.”

The comprehensive life-cycle study analyzes the entire production process—from bauxite mining to can manufacturing. The study incorporates the latest available information on energy and material consumption, greenhouse gas emissions, and other environmental releases. The study examines the can manufacturing process using both the cradle-to-cradle closed-loop approach and the recycled-content approach. It conformed to ISO methodology and was peer-reviewed by experts from the Society of Environmental Toxicology and Chemistry and the EPA.

Says Larkin, “The aluminum industry has made every effort to ensure the integrity and transparency of this important project.” In addition to being posted on the association’s website, the results and supporting data have been provided to the EPA, where they will be used to update the existing Life-Cycle Inventory database and the agency’s Waste Reduction Model.

“The study also confirmed our belief that the key to continuing to improve the carbon footprint of the aluminum can is to increase recycling rates,” says Pat Persico, manager of corporate communications for Novelis and chair of The Aluminum Association’s Can Committee. She notes that the aluminum industry is committed to a goal to increase the recycling rate to 75% by 2015, up from it’s current rate of 54. %.

The study is publicly available at www.aluminum.org/lca.