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City of Aspen Single Use Bag Study

By Laura Armstrong and Elizabeth O’Connell Chapman

Abstract: Five years after the City of Aspen Waste Ordinance went into effect, this study examines its effectiveness and current shopper behavior. The ordinance banned single use plastic bags from supermarkets and placed a $0.20 fee on single use paper bags. The policy was supported by outreach measures such as distributing reusable bags and education. Results show that single use paper bag sales per $100 of supermarket revenue ranged from a low of 0.59 bags/$100 revenue in 2012 to high of 0.78 bags/$100 revenue in 2014. This rate remained relatively constant between 2014-2016. These low values, combined with the observation that only 15% of shoppers leaving supermarkets were observed using single use bags, indicates that a substantial number of customers choose reusable bags or no bags at all. In contrast, observations made at a nearby supermarket with no bag policy in place indicated that 77% of shoppers left with single use bags. Surveys and interviews indicated that while some people initially opposed Aspen’s bag policy, the community has now generally adapted to and accepted it. These results suggest a level of success in using a policy lever, such as Aspen’s Waste Reduction Ordinance, to advance sustainable behavior.

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