Keep Plastic Out of the Green Bin! A new anti-contamination campaign to improve compost quality

Lisa Duba

This past year, we accepted the challenge to help San Mateo County develop a countywide social marketing campaign designed to improve compost quality by addressing contamination of food scraps and yard trimmings collected in the county.

The Project

Farmer: we need you help making healthy compostGigantic Idea Studio developed a scope of work that included as much of the community-based social marketing (CBSM) process as time and budget would allow:

  • Secondary research review of data from haulers, public agency RethinkWaste, transfer stations and composting facilities and similar campaigns,
  • Primary research via focus groups, with message development and testing and finally,
  • Campaign creative and a pilot study toolkit, with an implementation guide.

Partnering for Success

Gigantic partnered with R3 Consulting Group to analyze data and identify the top contaminants and sources of contamination. Unsurprisingly, plastics, especially film plastics, were most common. Multi-family dwellings (MFDs) and commercial businesses were the top sources. To keep within the time and budget, we chose plastic as the target contaminant, and MFDs as the target audience.

We also partnered with Green Motivate to look at messaging of similar campaigns conducted in Vermont; Boulder, Colorado; Oregon and Snohomish County, Washington. Each had compelling messages and images— some of which inspired our campaign.

Contaminated green bin means contaminated compostPartnering with Engel Research Partners, we conducted focus groups in English, Spanish and Cantonese to test selected messages and learn more about the barriers and benefits related to food scrap and yard trimming collection programs.

Top Takeaways

  • Most people were unclear about what happens to the contents of their green bins after they are collected.
  • Once they understood that compost was used in gardens, parks and farms, residents seemed more motivated to learn how to prevent contamination.
  • Motivating messages included links to local agriculture, farmers/farmworkers and health.
  • But people also wanted clear, easy to understand instructions on how to compost correctly— not just inspiration and fluff.
  • Bin is the preferred term (vs. carts) to refer to wheeled carts and larger rolloff bins.

From these learnings we created a messaging strategy to inform a storytelling video, article and social media posts that included:

  • Awareness messaging: “Contaminated Green Bin=Contaminate Compost”
  • Motivational messaging: “We need your help making healthy compost for San Mateo County gardens, parks and farms,” and
  • Food in, plastic out - green cartInstructional messaging: “Keep All Plastic Out of the Green Bin” and “Food In/Plastic Out”.

For on-the-ground interventions, the campaign toolkit also included bin area signage, a downloadable kitchen sign, and a pilot study methodology.  To reach the top monolingual, non-English speaking communities, we partnered with InterEthnica to adapt all campaign collateral into Spanish and Chinese.

While the CBSM components will be implemented locally by stakeholders, the County will be doing a media campaign to support on-the-ground efforts, running sometime this fall.

Lizzie Carrade of the San Mateo County Sustainability Department presented the campaign at the California Resource Recovery Association Annual Conference this year. We are proud to have been part of the team trying to address this pervasive problem.

 

Do Californians Get the Connection of Food Waste and Climate Change?

Nancy Roberts

Reducing food waste and diverting it and other organic materials from landfill is key to reducing methane emissions in our state (and around the world). California’s SB 1383 establishes targets for reducing organic waste going to landfill and increasing edible food recovery, and public agencies across the state are scrambling to implement it. The law, including outreach for it, was a major focus at this year’s California Resource Recovery Association (CRRA) Conference. The Gigantic team’s presentation was designed to contribute to that discussion.

How much do Californians already know about food waste and its connection to climate change? What would motivate more residents to reduce food waste? Back in 2020, we conducted a brief statewide survey of Californians to ask a few questions about their understanding of greenhouse gas emissions, landfill and food waste. We re-ran the survey with some additional questions in 2023 to see if the implementation of SB 1383 was impacting residents’ understanding of food waste and its relation to the warming planet. In comparing the data from 2023 to that of 2020 we noted:

  • 84% of respondents think that human-caused climate change is happening; this is up
    4 percentage points from 2020.
  • The number of respondents who are very or extremely worried about climate change is stable at 50%. There is an increase of those who say they are more worried than they were a year ago: 46% vs 40% in 2020.
  • Only 33% of respondents understood that food scraps break down and release methane in landfill. This is down from 42% in 2020.
  • Despite the requirements of SB 1383 that every resident have access to organics composting service, only 47% of respondents confirmed that their food scraps are collected separately from garbage. 28% said that food scraps go in the garbage and 16% said they don’t have food scrap collection service. 8% did not know.
  • When asked to select the three best reasons for reducing food waste, “The right thing to do” was selected by 45% of respondents (down from 49% in 2020). “Fighting climate change” was selected by 32% of respondents.

The survey results demonstrate that many Californians understand that climate change is happening and they are worried about it, but do not yet understand the connection between food waste going to landfill and the climate crisis. We see this as a possible opportunity for future  outreach: Many of the actions that fight climate change are quite a big “ask” for most people: “Buy a new electric car!” “Replace your water heater!” “Stop eating meat!” In contrast, cutting food waste is both simpler and has many practical benefits, such as saving money. Could outreach about cutting food waste to fight climate change be the daily action that makes people feel positive and hopeful about their actions and the future? This is a question we’d like to explore in future research.

To receive a copy of the full survey report, please email Gigantic.

Which Message is Best? Results from a Pilot Cart Tagging Project in Sunnyvale, California

Lisa Duba

Gigantic Idea Studio teamed up with Sunnyvale, California with the challenge to refresh their “FoodCycle” food scrap collection program outreach and improve participation rates. The question was, how?

social norming message tag
One tag version had messages of social norming and the benefits of foodcycling.

After surveying residents, we found that self-reported participation was actually fairly high at 63%, but cart audits showed a lower citywide participation rate of 57% and weekly participation of 45%.

The City wanted more program collateral, how-to videos and a presentation to help them communicate about the program, but also wanted to explore behavior-change tactics in a pilot program. Our team proposed a communications campaign as a baseline strategy, that would be supplemented with cart tagging in two pilot areas. The pilot would determine whether or not cart tagging improved participation more than advertisements, articles and videos. Together, we set a goal to raise weekly participation by 5%.

The two pilot areas were given two different messaging strategies: Social Norming and Benefit messaging vs. Addressing Barriers messaging. The social norming tag showed residents and their quotes about why they FoodCycled—and then listed the benefits of participation, such as reducing waste and fighting climate change. It also clearly stated that 63% of residents participate, a clear majority of support and enthusiasm. The second group received messaging related to overcoming barriers to participation, such as tips to avoid mess, smells and pests, and alternative collection containers for smaller kitchens or those concerned with aesthetics.

The more effective tag addressed barriers to food scrap recycling.

Although both strategies are part of the popular “Community-Based Social Marketing” practices, the cart audits showed that the “Barriers” messaging worked better in Sunnyvale. The households that received a cart tag with tips saw an increase of 9% (from 44% to 53%) in weekly participation and 7% in overall participation, when compared to the baseline.

Both types of messages were included in the communications campaign, but the pilot project shows that cart tagging adds effectiveness that can be measured. This is likely related to the personal and contextual message delivery method—the cart—which is related to the behavior change we are asking for.

Many cities will be conducting cart audits as part of SB 1383’s statewide requirements. Adding friendly, yet effective messaging designed to increase participation in organics programs is a good way to maximize the investment of labor required to do these audits. This messaging can be combined with contamination feedback and included on the back side of any cart tag.

We have experience designing these tags and providing guidance on how to determine messaging that resonates in your community. We’d love to hear from you!

SB 1383: Composting Outreach to Multi-Family Residents

Lisa Duba
Man emptying compost pail into correct cart
A new campaign encourages organic material composting for multi-family residents.

SB 1383 requires everyone in California — residents and businesses — to separate and compost organic materials, such as plant trimmings, leaves, grass and food scraps. In much of the Bay Area, yard trimmings and food scrap collection has been offered to single-family households for years. But the new law is providing a much-needed push to roll out food scrap collection service to multi-unit buildings. These buildings, which can have a few as four and up to hundreds of individual units, provide challenges, but also opportunities to keep more organic material out of the landfill.

Food scrap collection is an entirely new concept to the vast majority of apartment, condo and and townhome residents, and a clear and effective outreach program is a must-have. Outreach is ideally implemented at each building site. A successful program requires a good partnership between the service provider, the city or waste agency, and the property manager.

Gigantic is proud to have been part of a great collaboration with the South Bayside Waste Management Authority and their service provider, Recology, to create a composting campaign for apartment and condo residents.

Our team helped focus the campaign for the end-user of the program: the resident. The campaign will support the work of Recology’s implementation team and include a doorhanger for individual units and a poster for lobbies, trash areas and mail rooms. Both highlight the new food scrap composting requirement and link via QR code to a step-by-step instructional video. To support this site-specific outreach, we’ll be promoting the video on social media via paid promotion.

The video works to show, not tell, and visually communicates the food scrap recycling process. The addition of select graphic captions help identify key steps in the process. Voice-over in three languages (English, Spanish and Cantonese) help reach residents who may otherwise miss the message, while providing more detailed information.

Our video also includes 1383-required messaging about the law and its goal to reduce greenhouse gases.

We enjoyed working with this highly motivated client team. The program rolled out in June and we look forward to seeing the results!