Executive Director Eddie Ahn of Brightline Defense is a passionate advocate for the underserved of San Francisco. We climb up to the roof with he and his team as they install an air quality sensor near a busy City freeway interchange so that it can start monitoring pollution there. Data collected by the nonprofit's network of instruments is available for free to low-income residents who cannot afford their own sensors. Brightline partners with other groups to get the word out about protecting everyone from unhealthy air.
Learn more at www.brightlinedefense.org
Produced by Rick Bacigalupi