In the last few years a formerly unknown phenomenon has appeared on Lake Michigan, huge “ice balls”. This should be perplexing enough, but what about when the “ice balls” appear in lake water that is 40 degrees or above? Welcome to the world of chemical/biological ice nucleation. Artificial nucleating agents form the nucleus of ice around which the “balls” form. Last year on Lake Michigan volumes of ice were still floating around while people were sunbathing on beaches with 85 degree temperatures. MORE