Much of the world used to be covered with trees. But most of the world's ancient forests have been cut down.
Whether through clearing of land for agriculture, legal or illegal logging, or expansion of human living spaces - deforestation has had a broad impact on our planet. Many human populations and animal species depend on forests, while the trees themselves have even become threatened or endangered.
Peru is the world's seventh largest gold producer, with between 150 and 200 tons of the metal being extracted each year. Although most of it is being extracted by international mining companies, a significant amount of gold is also produced illegally by small-scale operators.