The Nenana Ice Classic, a betting match on when ice on Alaska’s Tanana River breaks up enough to tip a tripod linked to a clock, set a record this weekend by ending nearly a week earlier than ever recorded, the Fairbanks Daily News-Miner reported.
Source: https://earther.gizmodo.com/annual-competition-to-guess-when-alaskan-river-will-tha-1834035701