

Another dust storm today. I could not remember a dust storm in Sydney, though I did spend more than ten years out of the country. The papers vindicated my memories: although weather bureau records show that dust storms have swept Sydney before, in 1994 I was out of the country; in '68 I don't know what I was doing, but I don't remember it; in '57 I was too young to remember anything and in '42 I wasn't even a twinkle in my father's eye.
The dust which blew over Sydney was estimated to weigh one quarter of the weight of Uluru, that Australian icon situated in the centre of the continent. The origin of the dust which still blankets Sydney was the area around the salt lakes of South Australia (about 1,500 kilometres away) and northern NSW. (These areas have been in drought for eight years.) A couple of weeks ago, scientists were studying this very dust on the snow of Mt Hutt in New Zealand.
Sometime this week I will take a photo at the same time of day as the first and second above to demonstrate the difference between what I see every morning and what I saw on Wednesday.