Jennifer Marohasy gives the recent Sydney dust storm some historical context here. One of the theories going around for this dust storm is that it has originated from Lake Eyre, which filled with water earlier this year, but the mud has since dried to dust. The dust storms then, ironically, may owe their existence to unusual rainfall events as much as any subsequent drought.
By the way, a useful link here - the Kanye West apology generator.
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One thing I learned from Plimer is that the ice cores have layers of dust all the way through them, going back tens of thousands of years. Cores in Greenland and Antarctica show layers of dust. And all laid down before man even thought of burning that first lump of coal....
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