Eco-Olympics / Green Cup (campus residential)
Month-long competition between residence halls (dorms) on percent reduction in electricity and water vs baseline. Tracked via real meter data, often visualized on color-changing orbs (Oberlin BuildingOS).
Dorm-vs-dorm league on real meter data. National rollup via Campus Conservation Nationals enables inter-university comparison. Public leaderboards (e.g. UNC Green Games).
Each dorm has student leadership teams who recruit floor mates, run promo events, organize switch-off pledges. Cal State Chico reported ~1,000 students mobilized; saved $2,000 in one week. Hall identity and rivalry drive collective action.
Well-documented, decade-plus running model for a self-contained geographic unit (residence hall). Lessons translate cleanly to apartment buildings or housing blocks for BelongHub.
Others in the same family
STADTRADELN (CITY CYCLING)
Run by Climate Alliance, a 21-day campaign where municipalities sign up to compete on per-capita and absolute cycling kilometers. Mandatory team affiliation; tracked via the CITY CYCLING app GPS or paper log.
City Nature Challenge
Started 2016 as LA-vs-SF friendly competition; now an annual end-of-April 4-day bioblitz where cities compete on most observations, most species, most participants. Using iNaturalist. Run by California Academy of Sciences + Natural History Museum LA.
Energy Sparks
Charity-run platform that pulls schools' smart-meter data into an energy-analysis dashboard for pupils and staff, with explicit competition layer.
Trash Hero World (chapter league)
Swiss-registered nonprofit where each town runs a chapter (resident-led volunteer team) doing weekly cleanups, supported by a global mentor team. Chapters share branding, handbook, methodology.
Cool Choices (Wisconsin team sustainability game)
Madison-based non-profit running a 4-6 week online sustainability game where employees of companies, school districts, and municipalities form teams. Players log daily 'cool choices' (carpool, line-dry laundry, unplug devices) which are translated into points on a public scoreboard. Originally a deck of physical cards at Miron Construction; now web/mobile. 9,471+ players, 334,201+ sustainable actions reported.
Klima-Taler
City-branded climate app powered by motiontag that auto-detects walking/cycling/public-transport trips and converts CO2 saved into 'Klima-Taler' coins redeemable at local pools, museums, shops. Each participating city gets its own white-label instance; users join open teams.