In this episode of Nature’s Fury: Catastrophic Disasters that Shook the World, we explore the devastating eruption of Iceland’s Laki volcano in 1783—an eight-month-long environmental catastrophe that released poisonous gases and lava on an unprecedented scale. The eruption led to the deaths of a quarter of Iceland’s population, wiped out half its livestock, and created a toxic haze that drifted across Europe, Asia, and Africa.