Seaweed farms have the capacity to grow huge amounts of nutrient-rich food, and oysters can act as an efficient carbon and nitrogen sink.
Make Your Own Energy
Guatemalan farms depend largely on chemical fertilizers for crop production and firewood for household heat. Together, these two elements have significantly contributed to the poverty and environmental degradation faced by these communities. Alterna -- an organization in the city of Quetzaltenango -- is working to change that.
Their solution? A reinvention of the humble wood stove into a biodigestor system that generates energy from organic food waste. For the households that use them, it saves money, reduces harmful fumes, and provides plenty of free, all-natural fertilizer. And for the larger Guatemalan countryside, it promises to save countless trees.
Video Credit: Permacyclists.com