Dunkin' Donuts announced its plans today to eliminate all polystyrene foam cups from its stores. The move to replace foam cups with new, double-walled paper cups will begin this spring in New York and California with plans to complete the switch across the globe by 2020.

The impact: Dunkin', which has been working on developing an environmentally-friendly coffee cup since 2011, claims that the transition will remove nearly 1 billion foam cups from trash bins.