Introduction : space, history and the governing of air pollution -- Historical geographies of science and government : exploring the apparatuses of atmospheric knowledge production -- Science, sight and the optics of air government -- Governing air conduct : exhibition, examination and the cultivation of the atmospheric self -- Instrumentation and the sites of atmospheric monitoring -- A national census of the air : spatial science, calculation and the geo-coding of the atmosphere -- Automating the air : atmospheric simulations and digital beings -- Environmental governmentalities and the ecological coding of the British atmosphere -- Conclusion : learning like a state in an age of atmospheric change