Bloated livestock carcasses and sun-bleached bones litter the parched landscape around Garissa in eastern Kenya, the epicenter of a humanitarian and environmental crisis that's unfolding across the Horn of Africa.
The worst drought in at least four decades and sweltering temperatures have depleted the area’s rivers and dams, driven thousands of destitute farmers from their lands and left those that remain reliant on pumps, boreholes and trucked-in water supplies.