Fig. 1: Percent contribution of quintiles to the total environmental impact of lunches served in the National School Lunch Program by impact category.

Caption: Lunch impacts for each impact category are divided into quintiles; each quintile represents 20% of lunches and is identified by a different color. Quintiles are stacked from 1^st to 5^th. Contribution of impacts from quintiles vary considerably across impact categories, with lunch impacts in the 4^th and 5^th quintile accounting for most of the total impact.