Cowboys herd prime assets: Beef exports earn Brazil three billion dollars a year. With cattle numbers now topping 60 million, the demand for new pastureland drives much deforestation.

• 如今，巴西每年出口牛肉的收入已经达到30亿美元，农场主们饲养的牲畜达6000万头。畜牧业的不断发展使得越来越多的雨林消失。