Campus Composting Bins

The dining hall composting program started last semester. Most interesting part isn't the bins themselves but the signage system making sorting intuitive. Each waste station has 3 openings with different shapes: round hole for compost, rectangular slot for recycling, swinging door for landfill. You don't even need to read labels to sort correctly. Bins are color-coded green, blue, and black. Overhead signs use photos of actual items from the dining hall rather than generic clip art, showing your specific coffee cup and salad container instead of abstract categories. Contamination dropped from 40% to 12% in the first 3 months, according to the sustainability office. Key insight: station design matters more than education campaigns. When a system makes the right choice easier than the wrong one, people follow it without thinking. Compost goes to a campus garden growing herbs for the dining hall, closing the loop visibly enough for students to notice. Most composting programs fail because they ask people to learn a new system. This one works because physical design does the teaching. Shaped openings are the smartest detail. They create a moment of friction that forces you to slow down and sort, but not enough friction to make you give up and throw everything in landfill.