For more detailed insights and data, check out the full paper: https://www.pnas.org/doi/10.1073/pnas.2319712121 (7/7)

Encouraged by the results, Nansana municipality scaled our experiment by implementing a 3-month campaign in the 22 control zones. Using public health outreach and pairwise competitions, they saw a sharp decline in waste burning. #SpeedandScale (6/7)Encouraged by the results, Nansana municipality scaled our experiment by implementing a 3-month campaign in the 22 control zones. Using public health outreach and pairwise competitions, they saw a sharp decline in waste burning. #SpeedandScale (6/7)

The study highlights that these social competitions galvanized community leadership and fostered a sense of pride and coordination among residents. The reward for winning is a certificate. This presents a low-cost approach to mitigating air pollution. #CollectiveAction (5/7)The study highlights that these social competitions galvanized community leadership and fostered a sense of pride and coordination among residents. The reward for winning is a certificate. This presents a low-cost approach to mitigating air pollution. #CollectiveAction (5/7)

Neighborhoods involved in the competition showed a 24% reduction in waste burning compared to control neighborhoods, with no evidence of a rebound effect 10 months after the final audit during the experimental period. #BehaviorChange (4/7)Neighborhoods involved in the competition showed a 24% reduction in waste burning compared to control neighborhoods, with no evidence of a rebound effect 10 months after the final audit during the experimental period. #BehaviorChange (4/7)

Our study involved a randomized experiment with 44 neighborhoods in Nansana, where all received a public health campaign, but only 22 were paired for competition to reduce waste burning over eight months. #FieldExperiment (3/7)Our study involved a randomized experiment with 44 neighborhoods in Nansana, where all received a public health campaign, but only 22 were paired for competition to reduce waste burning over eight months. #FieldExperiment (3/7)

Urban areas in Uganda, like many regions in the Global South, face severe air pollution issues. One major contributor? The informal burning of household waste. This practice significantly increases air pollution exposure, posing serious public health risks. #PublicHealth (2/7)Urban areas in Uganda, like many regions in the Global South, face severe air pollution issues. One major contributor? The informal burning of household waste. This practice significantly increases air pollution exposure, posing serious public health risks. #PublicHealth (2/7)