In Africa, many people rely on wood from trees to cook food over stoves. The tremendous usage of wood contributes to deforestation and environmental decline. Using bamboo instead of wood is a more profitable and greener solution.

The people of Malawi count on wood for cooking, cleaning, and sanitation, which contributes to the country’s ranking as fifth highest in the world for deforestation. Once thought unsolvable, the people of the country are planting trees, benefiting from water filters, and using efficient cookstoves.

Scientists in southeast America are trying to rebuild the natural biocrusts that existed centuries ago. The biocrusts, which are concentrations of cyanobacteria, moss, and lichens, are a crucial part of ecosystems in its ability to prevent erosion and soil degradation. Researchers across the region have been growing them in labs, but the implementation into the environment has posed challenges.

In 1976, the Costa Rican city Hojancha preserved only 2% of its land as forest, and as a result their water supply (the Río Nosara river basin) dried up from the lack of vegetation. Sixteen years into the crisis, two friends conceived and ran an initiative to reforest the land by asking every family in the city to donate ¢1,000 a month until they could buy back the land in full from the ranchers who owned it. Now, the land is thriving again, though the project of regrowing the forest continues still today.