The numbers are staggering. According to one report, the world uses 500 billion plastic cups every year. It's estimated that 50 billion paper coffee cups are thrown away in the United States alone.

Downtown Petaluma is already decked out for the holidays. But something is missing: 60 strategically placed purple bins placed as part of a plan to reduce disposable cup waste. "Those purple bins all ...

PETALUMA, Calif. (KGO) -- Walk around the streets of downtown Petaluma and you can't help but notice dozens of giant purple bins. They're all a part of a pilot program called the Petaluma Reusable Cup ...