The Tijuana River sewage crisis is a multi-faceted problem, with environmental, public health and political challenges to overcome. … Enter Sarah Federman’s Peace Studies students. She teaches conflict resolution at the University of San Diego’s Joan B. Kroc School of Peace Studies, and this spring semester, she taught her class on the ongoing cross-border sewage crisis. … “We found a lot of fragmented data,” said Elise Free, a USD student who supported Federman’s class. “We found a lot of very dense scientific reports. And so, our next goal was to create a document that made all of that legible.” They wanted to create a chemical index that the public could use to better understand where the chemicals were coming from and what dangers they pose to their health.