The Congo Basin
Tropical rainforests like the Congo Basin produce 40 percent of the world's oxygen and serve as a vital source of food, medicine and minerals.
The Threat: At more than 1.3 million square miles, the Congo Basin has the world's second-largest rainforest, after the Amazon's. According to the UN up to two-thirds of the forest and its unique plants and wildlife could be lost by 2040 unless more effective measures are taken to protect it. Extending across six nations, ten million acres of forest is degraded each year due to mining, illegal logging, farming, ranching, and guerilla warfare. Roads cut by loggers and miners have also enabled poachers and bushmeat hunters to prey on endangered animals like mountain gorillas, forest elephants, bonobos, and okapis. As the forest shrinks, less carbon dioxide is absorbed, and rain decreases, adding to climate change.