This January, 2018 photo provided by Bethel Search and Rescue shows people and objects on a portion of the Kuskokwim River near Bethel, Alaska, that is partly covered by ice, not as much as usual this time of year. Months of higher-than-normal temperatures have opened dangerous holes in frozen rivers that rural Alaskans use as roads. One troublesome ice highway is the Kuskokwim River, where a man died New Year's Eve after driving his snowmobile into a hole. (Bethel Search and Rescue via AP)