Southern Nevada Water Authority's Water Smart Landscapes Program  

As climate change leads to more drought situations, it will be important to understand how to best promote water conservation. Southern Nevada Water Authority’s Water Smart Landscapes (WSL) program pays homeowners to replace their non-native, ornamental lawns with plants and landscapes that use less water because they are better adapted to their dry climate. It is one of the longest running “cash for grass” policies. Designated a Landmark case study by our climate change peer review panel in 2022.

Reduce Your Juice: Meaningful Gamification Motivates and Empowers a Challenging Consumer Segment to Save Money and Energy  

This innovative social marketing approach changed the energy use behaviours of low-income renters in Brisbane, Australia, through meaningful gamification. The gamified experience promoted desired behaviours and reduced undesired ones, all carefully chosen using McKenzie-Mohr's cbsm guidelines for selecting behaviors. The Reduce Your Juice program was designed to be fun, easy and impactful. On the exterior, it appears as a simple, fun and easy experience of games and gamified activities, communications, community, and rewards. However, below the surface lies a sophisticated intervention developed through the application of formative research and theory and implemented by a team of multi-disciplinary experts from the energy, social marketing, behaviour change, digital insights & technology, research, and social sectors. Designated a Landmark case study by our Building Energy peer review panel in 2022.

Chicago’s Building Energy Rating System  

Chicago was the first U.S. city to require building owners to prominently post a building’s energy performance rating, and to share that that rating with potential buyers and/or renters. While the rating system was being introduced, ComEd and Peoples Gas ran extensive complementary incentive and rebate programs that enabled building owners and managers to make energy improvements at little to no cost. Designated a Landmark case study in 2022 by our climate change peer review panel.

How Copenhagen Became a Cycling City  

What makes a great cycling city? How did the medium-sized City of Copenhagen get its citizens to cycle to work / school 49% of the time? While topography and climate are significant influencers, safety, supportive infrastructure, and promotion also played key roles. Copenhagen increased cycling by making it safer, easier, and more convenient. This case illustrates the power of piloting alternative enhancements on an ongoing basis to further reduce barriers and increase benefits, based on regular surveys, traffic data and safety data. It also features a transparent planning process - the Bicycle Account – a research, evaluation, promotion, and citizen engagement tool used every two years since 1996. Designated a Landmark case study by our Transportation peer selection panel in 2022.

Paris Reduces Car Use, Boosts Walking and Cycling  

Paris is an inspiration for large cities around the world, having reduced car traffic in its core (Ile de France) from a mode share of 12.8% in 2010 to 6% in 2020. How did Paris get to be one of the cities in the world with the lowest mode share for single occupant vehicles? The city is comparatively dense and has one of the top subways in the world. But what is most striking about its transformation is the increase in cycling and walking during this period – they increased from 55.4% in 2010 to 68% in 2020. Numerous programs offered by three levels of government explicitly prioritized bicycles over cars and reduced on-street car parking to make room for bike lanes. They taxed and restricted more polluting vehicles, and gradually phased them out, while providing a conversion bonus for the purchase or lease of electric-assisted bicycles and cargo bikes. In addition, car ads had to include messages promoting greener methods of transportation, and incentives were provided for bike repairs and tune-ups. Designated a Landmark case study by our sustainable transportation peer review and selection panel in 2022.

Opting Out in Germany for Non-Renewable Energy  

While many people in Germany say they would use green energy if presented with a choice, very few consumers do so. In contrast, most people have been using green energy in a few German municipalities where citizens have had to opt out for non-renewable energy supplies rather than having to opt-in to get renewable ones. This case study also illustrates the connection between green power choices and clean air / environmental health, and the value of randomized control trials (RCTs) for measuring program impacts. Designated a Landmark case study by our Building Energy peer review panel in 2022.

Too Good to Go  

About 75% of food waste goes to landfill, where it becomes one of the largest sources of greenhouse gas emissions at 10% of total emissions. Too Good to Go turns food waste into a win-win situation for everyone, by creating jobs, generating revenue, reducing food waste, and diminishing environmental impacts. At its most basic, the app is a marketplace for surplus food. It enables you to see what extra food is likely to be available that day from nearby bakeries, stores, and restaurants - fresh food that would otherwise be thrown out at the end of the day because it would no longer be considered fresh and salable. Using the app, you can buy a ‘magic bag’ meal for roughly one third of what you would normally pay, then pick it up at the vendor’s closing time. As of June 2022, a total of 141 million bags had been sold, eliminating 775 million lb. (about 387,500 US tons) of CO2 emissions. In the first six months of 2022 alone, 88.5 million bags were sold, eliminating the equivalent of 973.5 million pounds (about 486,800 US tons) of CO2 emissions per year. 

Carpooling and Vanpooling in San Mateo County, California  

This program promotes carpooling and vanpooling instead of driving alone during peak commute periods, using advertising (online, video, and display), challenges, and prize-based campaigns to attract and retain its target audience. It also made its standard Guaranteed Ride Home system easier to use. This case study illustrates the timing of incentives to promote habit formation. It also exemplifies how benefits can be increased by integrating some of the participant-facing aspects of multiple, independent programs in neighboring regions.

Smart Trips Austin  

Smart Trips Austin encourages residents of Austin Texas, USA to take multi-modal transportation options (walk, bike, ride transit, and share rides) more often, rather than drive alone. The program focuses on personal interactions — educating individuals on their options and overcoming barriers to multi-modal travel. Smart Trips reinforces this new information using community-based programs such as learn-to-ride classes, transit instruction, and group walking activities. Initially, the program targeted residential neighbourhoods of Austin Texas; each year a different area was targeted. In 2020 the program expanded to city-wide and began to segment using a Stages of Change approach. In 2021, it started targeting residents who had recently moved to or around Austin. Smart Trips Austin averaged a participation rate of 5-10% of households contacted, a 5-10% reduction in drive-alone trips among participants (about 41,000 vehicle trips per year), and a corresponding 5-10% increase in active and shared trips.

Energy Cat Game  

The Energy Cat computer game was piloted with social housing residents in Plymouth, United Kingdom, to motivate and help them learn about affordable, energy-saving steps they could take in their homes. The game provided an average electricity saving of 3.46% and an average gas saving of 7.48%.