A reforestation project in Colombia

"In the early 1980's Gaviotas began planting a Caribbean pine tree in the otherwise barren llanos of eastern Colombia. These trees were able to survive in the highly acidic soil with the help of mycorrhizal fungus applied to their roots. Over the years, this forest has expanded to approximately 8,000 hectares, or 20,000 acres. The presence of the forest has altered the local climate by generating an additional 10 percent rainfall, which also supports Gaviotas' water bottling initiative.

Over the years the pine trees have provided a shady understory for other plants and animals to thrive. Some of these species may be dormant seeds of ancient rainforest that once covered the region. The pines are slowly being crowded out by the regeneration of indigenous species. The community is generating power with turbine engines fueled by the aging pines in their forest."

http://www.friendsofgaviotas.org/Friends_of_Gaviotas/Gaviotas_Forest/Gaviotas_Forest.html