Which raised the question: Why doesn't this thin frozen surface break? (scientificamerican.com)
It started on a New Year's Day, with pomp, parades, bowl queens and quarterbacks in a traditional spectacle, and it ended hardly hours ago to the shush of skis across a hundred mountain slopes, the tranquillity of a year - end sunset seen from a thousand duck blinds and the last ice fisherman packing up his gear onthe frozen surface of Lake Minnetonka. (si.com)
Reductions in sea ice in the Arctic have a clear impact on animals such as polar bears that rely on frozen surfaces for feeding, mating and migrating. (sciencedaily.com)