This episode explores a community‑driven study that maps environmental inequality in Chicago. The researchers collaborated with affected neighborhoods to build accessible dashboards showing the unequal distribution of hazards: industrial roads, toxic release sites, rail yards, and brownfields. A key metric, the Collective Proximity Burden, captures how close schools and communities are to multiple risk sources at once. The analysis shows that neighborhoods with higher proportions of Latinx residents face substantially greater exposure. The resulting dashboards, part of the Midwest Comprehensive Visualization Dashboards project, now inform zoning decisions, school planning, and environmental monitoring. By combining data analysis, urban mapping, and community participation, the project demonstrates how transparency and collaboration can support environmental justice. Produced by Cognivault — insight, intelligence, and innovation made clear.