Energy form: Water
Project size: 70 new jobs; provides electricity to surrounding villages
Investment: $15 million (10.5 million euros)
CO2 reduction: 30,000 tons annually

In the Honduran city of La Esperanza, an old dam has been refitted to produce green energy. Designed with climate protection in mind from the start, the facility was the first project worldwide that was allowed to sell carbon emission certificates after the 1997 Kyoto treaty.

A film by Sascha Quaiser