Vidéos

On Bolivia's high Andean plain, 4,500 metres above sea level, alpacas and llamas are becoming big business for poor ranchers. 

Weather patterns are becoming more unpredictable in the Sahel region of Burkina Faso. Farmers say the rainy season that once began regularly in June is often delayed and when the rain finally does come the sudden force and volume of water can cause flooding and destroy crops.