We talk to Dr. Lugo about studies the Institute has made in EL Yunque over the last 60 years. Making a historical building "green" (and things we can do at the rainforestinn for the environment). We visit a huge Asubo tree in the jardin botanical sur as well as other trees in the beautiful botanical garden on our walking sound tour. He also describes how the institute works with other countries including Brazil saving the world’s rainforests. He describes their work with schools in Puerto Rico teaching students scientific methods of forestry and GIS studies with satellite photos of land use patterns and land cover change.