Remaking the Sky

Introduction: Two Questions -- Part One: Energies. The top of the world -- A planet called weather -- Pinatubo -- Dimming the noontime sun -- Coming to think this way -- Moving the goalposts. Part Two: Substances. Nitrogen -- Carbon past, carbon present -- Carbon present, carbon future -- Sulphur and soggy mirrors. Part Three: Possibilities. The ends of the world -- The deliberate planet.