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canaries in a coal mine



canaries in a coal mine

  1. plural of canary in a coal mine
    • 2006, Anthony Marcus, Where Have All the Homeless Gone?: The Making and Unmaking of a Crisis, Berghahn Books (2006), →ISBN, page 152:
      The weakest members of society become social barometers or canaries in a coal mine.
    • 2006, Steve Fennessy, "Frog Man", Atlanta Magazine, July 2006:
      One of the few animals to live part of its life in water and part on land, frogs are seen by some as canaries in a coal mine — which is why the chytrid fungus has environmentalists worried.
    • 2009, Patricia K. Smith, Obesity Among Poor Americans: Is Public Assistance the Problem?, Vanderbilt University Press (2009), →ISBN, page 13:
      Perhaps public assistance has little to do with obesity among the poor; instead, the poor may simply be canaries in a coal mine, their health suffering from environmental changes before others feel the impact.