When Laura Young got Cooper the cavapoo in 2020, she knew that single-use plastic poo bags weren’t going to cut it. “Having a dog is a lifestyle extra,” says the 28-year-old environmental scientist. “I was aware that I wanted to try not having a negative environmental impact.” But where to start? The shelves seemed to be divided into two camps: bog-standard, single-use plastic wisps, and shiny, expensive bags brandishing eco buzzwords. “I was conscious that compostable bags weren’t the solution,” says Young. “But initially that’s all I could find and so that’s what I bought.”
Often marketed as biodegradable, compostable or made from an alternative material such as cornstarch, they promise a more environmentally friendly option than single-use plastic. (Plastic poo bags, frequently made from low-density polyethylene, will sweat in landfill for thousands of years, breaking down into harmful microplastics and releasing climate-warming methane as they go.)