'Atmospheres are always all around us; but they are also routinely overlooked and ignored. When they become visible, are felt or otherwise noticed they can be experienced as an unusual interruption. Whether a storm cloud or a roadside flare, they mark a change. We also know from Gothic literature and horror films that fogs and mists roll in and change the mood of a scene turning innocent bucolic landscapes into sinister reminders of dangers, real or imagined, that may be lurking in the dark. Un-seen invisible gases can impact us too, making spaces unpleasant and even uninhabitable.'
(Introduction)