Every living thing needs water to survive, so what happens when a disaster deprives whole regions of drinkable water? Crops die, animals and people starve, and economies fail. Droughts are by far the deadliest of all natural disasters, responsible for more than 11 million deaths in the 20th century alone. This episode investigates the devastating effects of droughts around the world.

Every living thing needs water to survive, so what happens when a disaster deprives whole regions of drinkable water? Crops die, animals and people starve, and economies fail. Droughts are by far the deadliest of all natural disasters, responsible for more than 11 million deaths in the 20th century alone. This episode investigates the devastating effects of droughts around the world.