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In a recent Science Advances paper, researchers describe a newly identified fungal protein that triggers ice formation at temperatures as high as 28.4 degrees Fahrenheit (-2 degrees Celsius). That’s obviously below the freezing point of water, but in nature, freezing isn’t that simple. Forming the first tiny seed of ice—an ice nucleator—takes energy, and ice forms very slowly at temperatures above -50 degrees F (-46 degrees C), according to the paper.
This Fungus Can Make Water Freeze
Source: gizmodo.com