The history of human civilization is, in many ways, a history of conflict. Empires rise and fall, countries come and go, and humanity soldiers on. Yet multiple investigations have found a troubling correlation -- it seems not all revolutions are the result of social instability or external rivals. In fact, the natural world itself may be one of history's most powerful (and dangerous) revolutionaries. Listen in to learn more about natural disaster and revolution -- and what this may mean for a world where natural disasters continue to increase.