When you're part of one of the greatest rivalries in sports, Michigan vs. Ohio State, you'll talk trash about anything, including actual game day trash — and who cleans it up better.

Lately, that's been Ohio State, where Mary Leciejewski is associate director of environmental sustainability.

"I mean, it just comes with the territory," Leciejewski said.

In this competition, armies of volunteers collect and sort through mountains of trash, separating what's recyclable from what's compostable, like food scraps and cups, forks and plates that are made to decompose over time.

The annual challenge is organized by the Campus Race to Zero Waste program. Campuses nationwide compete each season to see who can recycle and compost the most waste generated at home football games.

Last season, Ohio

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