Vonnegut mentioned his “canary-bird-in-the-coal-mine theory” again in a 1973 interview with Playboy. Artists, he explained, ...

Gaur, Vishal, Saravanan Kesavan, and Ananth Raman. "Retail Inventory: Managing the Canary in the Coal Mine!" California Management Review 56, no. 2 (Winter 2014): 55–76.

Nance. Shrinking kelp beds are just another “canary in the coal mine” trying to tell us to pay attention….DANGER AHEAD! But don’t feel down and helpless, we can all “kelp” ourselves!

John's trailer is a bellwether for danger to come. "It would be important to look at this possibly as a canary in the coal mine," says Gillian Kolla, an assistant professor of public health.

Jobless claims are perhaps the best canary in the coal mine, so to speak, for the economy. They tend to start to rise ahead of economic weakness or recessions. There's no sign of that. Jobless ...

A public health researcher says the amount of fentanyl found in St. John's last fall is a glaring warning sign of danger to come. As Here and Now's Malone Mullin reports, removing those drugs from the ...

"It's the canary in the coal mine," Lackman said. "It's a symbol or a symptom of a really broken system that needs to address the most vulnerable in its communities." She added: "We need a ...

They now serve roughly 1,800 families a month. Across Canada, she pointed out, nearly one in four people experience some form of food insecurity. "It's the canary in the coal mine," Lackman said.