Deforestation is causing a loss of biological diversity on an unprecedented scale. Although tropical forests cover only six percent of Earth’s land surface, they happen to contain between 70% and 90% of all of the world’s species (Myers, 12). As a result of deforestation, we are losing between 50 and 100 animal and plant species each day (Myers 12). Inevitably, the loss of species entails a loss of genetic resources. Many of these species now facing the possibility of extinction are of enormous potential to humans in many areas; especially medicine. As of 1991, over 25% of the world’s pharmaceutical products were derived from tropical plants (Myers). By contributing to the extinction of multiple species of plants and animals, we might be destroying the cures for many of the diseases that plague the human race today.

The world’s forests, particularly tropical rainforests, are home to over 10 million members of the "last surviving intimately resource-based cultures" (GFF 3). Given the importance of forest products to the daily lives of forest peoples, the destruction of tropical forests entails the destruction of tribal populations as a whole. Aboriginal people world-wide have had their land literally stolen from them by governments and industries, whose intent is to turn "natural capital into hard currency" (Dudley 11). As the Global Futures Foundation states, "there have been more extinctions of tribal peoples in this century than any other. Even in the rare cases when forest dwellers are compensated for this loss, the changes visited upon their cultures by the inexorable expansion of industrial culture are devastating." Without a doubt, deforestation has had a profound effect on cultural diversity throughout the forest regions, and ultimately, the world.