Something strange and noisy is happening on Michigan's Zug Island, complain Canadians in Windsor, on the other side of the Detroit River. The "Windsor hum"—described as a low-pitched rumble—has been annoying residents of the border city for two years. Canadian scientists say they have pinpointed the noise as emanating from the heavily industrialized island at the southern edge of Detroit. Canadian diplomats have repeatedly raised the issue with their US counterparts without success, the Wall Street Journal finds.
American authorities say they can't hear the mysterious rumble coming from the island, which is dominated by steel mills and is off-limits to the public—and haven't received any complaints from the US side of the border. Angry, sleep-deprived Canadians are urging their politicians to take action, but the mayor of River Rouge, the Detroit suburb with authority over Zug Island, says his government doesn't have enough cash to investigate the issue any further. "The only place I am hearing noise from is Canada—from politicians complaining," he says.