KUAC's Dan Bross talks with Alaska Center for Climate Assessment and Policy climate specialist Rick Thoman about breakup of the Tanana River ice at Nenana and greenup of trees on Chena Ridge in Fairbanks.
05-05-23 Beyond The Weather
![The clock that records the official break up time of the Tanana River ice at Nenana](https://npr.brightspotcdn.com/dims4/default/dc46848/2147483647/strip/true/crop/315x315+0+0/resize/880x880!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Fa1%2Fc3%2Fa7a5d269493ca5cc560a9290680f%2Fnenanaiceclassicclocknic.jpg)
Nenana Ice Classic