McDonald’s Corp (MCD.N) said on Thursday it has nearly achieved its goal of sourcing all of its paper food packaging in restaurants from recycled or sustainable fiber.

The Chicago-based global burger chain said in its annual sustainability report that in 2020 99.6% of the paper bags, food wrappers, napkins, cup carriers and other fiber-based materials it used to package meals for customers came from recycled or certified sustainable fiber sources, up from 92% in 2019.

Many restaurant chains are working to reduce environmental harm from packaging, including using more recyclable or compostable materials and letting customers reuse cups or bowls.

An Adweek-Harris Poll survey of U.S. adults in April about single-use fast-food packaging found that 62% of respondents said they would think more highly of a brand that switched to recyclable packaging, and 81% were concerned about litter and pollution from fast-food restaurants.

Because McDonald’s has more than 39,000 restaurants globally, small changes can ripple into other companies and industries.