Each year, approximately 50 billion single-use beverage cups are used globally and then disposed of, contributing to litter in various environments such as parks, beaches, rivers, and seas. The slow decomposition of these cups, especially those with plastic linings, can result in the release of harmful microplastics into the environment, posing threats to wildlife and water systems.

A Danish city, Aarhus, has introduced an innovative solution to address this crisis. The city has implemented the world’s first city-wide reusable drinks scheme, which has prevented thousands of cups from ending up in landfills, thereby avoiding the leaching of pollutants into the ground and air.

Instead of discarding the cups, residents utilize one of the 27 deposit machines located in Denmark’s second-largest city to return them for washing and redistribution to retailers. The process involves a straightforward system where a deposit of around 80 pence is refunded directly to the individual’s bank account by swiping a credit card on the machine.

The success of the initiative is evident as over 1.25 million cups have been returned since its launch 18 months ago, amounting to the prevention of 16 tonnes of waste equivalent to 10,000 bins filled with cups. The high return rate of 88% has attracted interest from other cities, with Lisbon implementing a similar reusable cup scheme for beverages earlier this year.

The initial goal in Aarhus was to collect 500,000 cups in the first year, but the program exceeded expectations with 735,000 cups returned, saving 14 tonnes of plastic from incineration and reducing CO2 emissions. The city aims to collect 1.5 million cups by 2025 and expand to include other forms of food packaging like takeaway salad bowls.

The project was spurred by the realization that nearly half of Aarhus’s waste comprises drink and food packaging. Events like the Aarhus Festuge festival, where businesses exclusively used reusable cups, demonstrated the impact of sustainable choices in waste reduction. The positive outcomes have encouraged other cities to consider similar models as a means to combat the growing waste crisis.

Furthermore, circular systems like the one in Denmark have garnered support from organizations aiming to address plastic waste issues. These systems promote repeated use of materials, reducing the demand for new resources and cutting down on carbon emissions. The success stories in Denmark and Latvia have inspired other countries to adopt similar deposit return schemes to enhance recycling rates and reduce littering, benefiting both the environment and wildlife.