Skating, ice fishing, and lake culture could disintegrate for millions within decades For hundreds of years, Shinto priests living on the banks of Lake Suwa, in the Nagano Prefecture of Japan, watched the surface of the lake freeze solid each winter. Partway through the winter, the ice would crack and refreeze, creating a long, jagged ridge stretching from shore to shore: the footprints of a god walking across the lake to...