The effects of combustion feature prominently in the planetary predicament signaled by the Anthropocene thesis. Historical studies of pyrotechnology—the application of heat to transform earth materials—suggest a wide-ranging inquiry into human fire use might bring new insights to the practical and political challenges of the Anthropocene. Drawing on Deleuze and Guattari, I use the term pyrotechnic phylum to refer to the multimillennial developments of metallurgy, ceramics, and related “fiery arts” centered on the enclosed fire of the oven, kiln, and furnace. As an engagement with the forces and properties of the Earth, pyrotechnical innovation has a pronounced experimental and playful dimension—opening up possibilities that human geological...