Americas

Despite U.S. aid, coca cultivation rising in Andes

Across the Andean region, the size of the coca crop has increased 18 percent in the past five years, a period during which the United States has spent $4 billion on anti-drug programs. With farmers turning to pesticides and modern irrigation to improve crop yields, the amount of cocaine produced in Colombia, Peru and Bolivia -- source countries for nearly all of the global supply -- hovers at 1,100 tons a year, according to a recent U.N. report.

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