Keywords: Adolescents (13-19 years), Built Environment (e.g., housing, urban planning), City / Regional / Provincial / State / National, Community, Education / Awareness & Skill Development / Training, Environmental / Public Health Inspection (e.g., enforcement of legislation, environmental risk assessment), Grade school aged (5-12 years), Meta-analysis, Policy and Legislation, School, Social Support (e.g., counseling, case management, outreach programs) , Youth Health