LAUSR

Significance Behavior change, such as sustainable transportation, resource conservation, and circular consumption, has the capacity to mitigate climate change. In this work, we seek to advance current knowledge by conducting a synthesis of interventions aimed to promote climate change mitigation behaviors in field-settings. Results from a second-order meta-analysis, including 10 meta-analyses and a total of 430 primary studies, show that pro-environmental behaviors increased by 2 to 12 percentage points compared to what would have been expected without treatment. Social comparison and financial approaches were the most effective tools, while information and feedback were the least effective. These results provide a comprehensive state-of-the-art summary of climate change mitigation interventions, guiding both future research and practice.