Every other Friday on Morning Edition NHPR’s Sam Evans-Brown tracks down answers to questions about the environment and outdoors for our listeners in a segment we call “Ask Sam.” This edition of Ask Sam originally aired in January, 2020.
Ruth from Sandwich asks: “I just was skating on beautiful Squam Lake with black ice, and we could look down and see some other stuff. I was wondering if you could talk about ice forms, why there’s cracks, why there’s little ridges, why there’s bubbles… all that stuff.”