“If you discharge wastewater into the river, do it upstream of where you collect your water.”
Suddenly, the factory had to clean up its outflow—because it was also its inflow.
âś… Elegant.
âś… Effective.
âś… Replicable anywhere.
👉 Do you know of other stories like this—where a simple idea changed behaviour and could be copied around the world? Share them in the comments!