How nineteenth-century environmental sciences laid the groundwork for global mineral extraction. Unearthed depicts a pivotal moment during the nineteenth century: As European and settler schemes to govern ever larger territories intensified, the earth and atmospheric sciences were also becoming more global in scope, assembling models of the planet while making use of militarized or highly industrialized systems. These efforts were informed by the physique du monde, or global physics, of Alexander von Humboldt (1769-1859), a program of vast data collection that spanned four hemispheres that aimed to determine general, scientific laws about the planet and its environments. Using Humboldt's itineraries as a frame, Unearthed traces an information order that linked far-flung industrial sites and frontier stations, from Prussian provinces to the Spanish and Russian empires. Humboldt intersected with Saxon miners, Mexican cartographers, and Siberian surveyors, among other itinerant Germans who mobilized the labor and resources of widespread mining operations for global surveys of earth and air. Interweaving the histories of capital and climate, Patrick Anthony takes readers from mines to mountains to show how the sciences of Humboldt's circuits both measured and made modern natures. These sciences of the mineral frontier, he argues, ultimately laid the groundwork for carbon-intensive economics and a logic of unending extraction. Wide-ranging and ambitious, Unearthed will interest scholars working in the history of science, global history, and the environmental humanities.