FAST FACTS:
Kalacha, in the Chalbi Desert, for centuries offered, in addition to its water sources, valuable pastures around which Gabra and other pastotorial tribal herds nourished.
But of late, the cycles of drought have been accelerating, the pastures are under pressure, and the herds are dying of hunger.
These degraded lands are also starting, in human terms, abandoning their nomadic lifestyle to take advantage of food aid. In the process they become environmental refugees, losing their identity.