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To do so, he assembled a larger – but almost as cheap – test bed by welding together two mesh-clad 40gal oil drums mounted ... of adding an auger separator to extract sand from the slurry ...

At sunset the drivers headed home, leaving behind splotches of oil on the sand and track marks scarring the dunes. But Amar said the gas-guzzling sport was not necessarily in conflict with nature. "I ...

At sunset the drivers headed home, leaving behind splotches of oil on the sand and track marks scarring the dunes. But Amar said the gas-guzzling sport was not necessarily in conflict with nature.

Wearing a helmet and strapped securely into his four-wheel-drive, Abdelilah al-Rabea tore off across the Saudi desert, kicking up clouds of sand as a ... pastime in the oil-rich kingdom.

Investigators did not know exactly how much oil was dumped onto the road, but Caltrans workers could be seen dumping loads of sand onto the liquid to soak it up. A street sweeper then drove over ...