From The Atlantic: Just getting to school each day, for the students of Broughal Middle School in the south side of Bethlehem, PA, was a strike against their ability to achieve in the classroom. When undergrads from Lehigh University spent a week following students to and from school with hand-held devices that measure air pollutants, they found that the kids’ daily walks could be contributing to the high rates of asthma that were keeping them out of the classroom. Redirecting their path through the major intersections of downtown Bethlehem, the city joined forces with community partners to repurpose an old railroad line into a safer path to school.

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