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[indri]

Last night, walking home, we walked through half-a-dozen dust devils. These are swirls of leaves and dust, perhaps a few metres high, whipped around by the wind. They're a sort of loose and saggy micro version of a tornado. I've seen them before, of course, but never before in the centre of town. The rest of tthe time, the wind was gusty but mostly going in a straight line, a genuine dust storm.

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[indri]

I never saw a dust devil until I came to Australia.

The climactic and environmental changes we've had in the last three decades have screwed up them devils

See, I don't even know what causes them. I may have to look it up.