Farmers uproot coca plants at Colombia's National Park, La Macarena. Farmers are contracted by the government to manually destroy coca fields in areas close to National Parks.
Accompanied by a hooded informant, members of a Colombian Police anti-narcotics unit land at a coca field in the rural area of Cumbitara, in southern Colombia. The informant, a former worker in cocaine labs in the area, marked the sites that were blown by the unit. According to the National Police, more than 100 cocaine producing labs have been destroyed this year in similar operations.
Farmers uproot coca plants in the Cauca mountains, near Balboa village, Colombia.
In South America, over the years, there has been a tendency for illicit drug crop cultivation to move to different areas to avoid local eradication campaigns.
Cocaine addiction appears to be on the rise in several countries in the Southern Cone of South America, including Argentina, Brazil, Chile and Uruguay
For a number of years, the UN has estimated the production of coca leaf with a view to providing information on the global supply of cocaine.
Colombian mules carry gasoline which is used to turn coca leaf into coca paste.
Farmer puts coca leaves in a bag, Monzon River valley, Peru.
In some South American countries, the funding of programs to reduce addiction continue to be insufficient.
Coca fields replace the rainforest in Monzon River valley in Peru.
Farmers uproot coca plants in the Cauca mountains, near the Balboa village, some 245 miles southwest of Bogota, Colombia. Colombia manually eradicated 40,000 hectares (99 acres) sowed with coca and poppy in 2006, according to the Colombian government.
A Revolutionary Armed Forces of Colombia rebel looks out on a coca field.
While production of coca bush has fallen in Colombia, it is up in both Peru and Bolivia, according to the International Narcotics Control Board.