What portable classrooms mean for student health and the environment and why school districts keep adding them.
(Video after the jump.)
Special report by EarthFix and InvestigateWest here: http://earthfix.info/portables/ Produced, written, narrated and edited by Katie Campbell Reported by Katie Campbell, Ashley Ahearn and Tony Schick Photography by Katie Campbell and Aileen Imperial Graphic by Nicole Fischer and Danika Sandoz
