San Francisco Giants launch cup reuse program at Oracle Park, cutting single-use plastic waste at baseball games.
What unsustainable behaviour needs to change:
At large sporting events, beverage consumption often leads to a mountain of single-use plastic waste. In U.S. stadiums, disposable cups are still the norm—used only for a few minutes, yet last for centuries. Most cups end up in landfills after just one game, contributing to environmental degradation and greenhouse gas emissions. Plastic production already accounts for 3.4% of global emissions—more than aviation—and is projected to double by 2060.
Germany’s Football League (Bundesliga) offers a powerful compelling alternative: Many German football clubs have used returnable cup systems for years, with strong fan support. FC Bayern Munich alone saves around 20 tonnes of waste annually through reuse. Since 2023, German law mandates that all stadiums offer drinks in reusable containers—proof that sustainability can scale without compromising fan experience.
Reuse systems like these offer a practical, high-impact way to cut stadium waste while preserving the ritual of the game-day drink.
The Green Nudge:
The Replay Program at Oracle Park replaces single-use cups with durable, reusable ones for alcoholic beverages from German reusables company Vytal. Fans receive their drinks in these cups and return them to designated bins before leaving. Cups are then collected, washed, and returned for circulation—creating a closed-loop system that slashes waste, water, and emissions when compared to disposables.
Each Vytal cup can be reused up to 200 times. After just 10 uses, it already outperforms single-use cups in terms of energy efficiency, water usage, and carbon footprint.
What makes this especially effective? The name. “Replay” is baseball lingo for reviewing a play—a moment fans already associate with second chances and fairness. By borrowing that familiar term, the programme makes reuse feel like a natural part of the fan experience. It sends a clear message: this isn’t just good for the planet—it’s part of the game. That framing fosters pride, not sacrifice—key to lasting behaviour change.
The Giants have been laying the groundwork for this approach for years, using playful baseball language to promote sustainability. Campaigns like “Waste Zero,” featuring slogans such as “Make a Giant Difference,” encouraged fans to sort waste more effectively—showing that when climate messages speak the language of sport, they resonate more deeply.
Do you know of any other nudges that promote sustainable practices at large events? Let us know: hello@green-nudges.com
From Vytal Global, a Cologne-based company pioneering smart, reusable packaging systems across Europe — and now expanding into the United States. As Vytal brings its reuse expertise to new markets, recognising and respecting cultural nuances is key. The “Replay Program” at Oracle Park reflects this approach: integrating sustainability into the rhythm and rituals of American baseball culture, rather than adding it from the outside.
Next Nudge
A fridge that feeds both people and community
Hubbub’s community fridges offer free food for all—bringing people together, building skills, and cutting waste through shared action.
