Great Salt Lake’s retreat poses a major fear: poisonous dust clouds

The largest salt lake in the western hemisphere risks one of the worst environmental disasters' as it faces the prospect of disappearing in just five years

To walk on to the Great Salt Lake, the largest salt lake in the western hemisphere which faces the astounding prospect of disappearing just five years from now, is to trudge across expanses of sand and mud, streaked with ice and desiccated aquatic life, where just a short time ago you would be wading in waist-deep water.

But the mounting sense of local dread over the lake's rapid retreat doesn't just come from its throttled water supply and record low levels, as bad as this is. The terror comes from toxins laced in the vast exposed lake bed, such as arsenic, mercury and lead, being picked up by the wind to form poisonous clouds of dust that would swamp the lungs of people in nearby Salt Lake City, where air pollution is often already worse than that of Los Angeles, potentially provoking a myriad of respiratory and cancer-related problems.