Clifton Crais, "The Killing Age: How Violence Made the Modern World" (U Chicago Press, 2025)

A bracing account of how our current planetary crisis emerged from the worst cataclysmic destruction in human history, which Clifton Crais terms the Mortecene—the killing age. We are used to speaking of the Anthropocene and the outsized impact humans have had on the planet. But we sometimes lose sight of a fundamental truth at the heart of modern world history: the legacy of human predation, slavery, and imperialism that has devastated the natural world and led us to our present …