By Jodi Lee File:How Coffee.jpg More than 20 percent of the world’s oxygen comes from the Amazon Rainforest. An incredibly complex ecosystem, rainforests are a powerhouse of living and breathing renewable natural resources that for years and years provided a wealth of resources for the survival and well-being of humankind. A short list of examples include basic food supplies, clothing, shelter, fuel, spices, industrial raw materials, and medicine. However, the inner dynamics of a tropical rainforest is an intricate and fragile system, damage to one part has a devastating domino effect.