Bermuda Equivalence

The realization that a coastal location's warm winter climate is just a highly insulated maritime bubble rather than a true tropical ecosystem. It exposes the fact that places like Bermuda or Key West rely entirely on the Gulf Stream to cheat death on paper, while their local flora spends four months a year starved of actual winter light.

Person A: "Bermuda is rated Zone 11b and Köppen Af, which is the exactly the same as parts of the Caribbean!"
Person B: "That's just the Bermuda Equivalence. You've got a great hot-water radiator to look good on paper, but your winter light levels are a total joke."

Bermuda Equivalence by Subtropical_Realist October 10, 2026