The Liquid Air (Breathing Structure) explores relationships between atmospheric pollution and ocean acidification through a collaboration between artist-architect Ainslie Murray and marine spatial ecologist Renata Ferrari. The work is developed from images of eroded branching corals and infant corals struggling to survive in the acidified ocean. A complex three-dimensional ‘breathing’ structure is threaded through an architectural space to explore parallels between underwater structures (branching corals) and atmospheric structures (built environments).