National Geographic : 2012 Sep
AK-47 in hand, a man passes by as Muhammad Ali Jobebi (left) and his son prepare bundles of qat, a popular stimulant leaf, at a Sanaa bazaar. Once best known for its coffee, Yemen now devotes 40 percent of its scarce water to irrigating qat. Worth $1.2 billion a year, the qat trade can earn sellers a thousand dollars a day. Meanwhile most of the country's food is imported.