The Great Salt Lake has been shriveling up for decades. At its record low about four years ago, the exposed lake bed became a source of toxic dust , with scientists warning of imminent ecological collapse . A Utah official called the lake an “ environmental nuclear bomb .” But a monumental, perhaps impossible, plan to save it has gained significant traction in recent months. The goal: refill the Great Salt Lake in just eight years. Once a niche cause for environmental advocacy groups, the task