I have been hiking in Tassie last week, and camping in the bush.
There was the scent of fire everywhere we went, during the day from controlled CFS area burnings, and at night from our (permitted) camp fire where we had our meals and baked our bread.
Today, back in my urban grind, I just got a whiff of fire coming through the window. Not sure where it came from, either from some backyard green-waste dump close by, or from some CFS intervention in farther surroundings, carried here by the wind. I instantly had a strong sentimental feeling going through me. Which is really odd, as once upon a time I would have associated the scent of fire with nothing else but danger, alertness, and the opposite of good basically.
Australian scents do create rather strange associations and emotions.