What this shows is that even severely damaged ecologies can be largely healed and restored in as little as a decade through scientific planning and proper investment by a powerful central authority that can mobilize society toward this goal. In addition, a smart ecological restoration initiative will also benefit the local economy. Cleaning up rivers from pollution opens up possibilities for recreational activities and tourism, sustainable fishing, etc. just like how combating desertification can revitalize local agriculture and bring new economic opportunities for the people living there.