2017 PEP Fellow Julie Brigham-Grette discusses ice obstructions that can cause flooding and damage in the Republican and on Western Mass News.

Julie Brigham-Grette, 2017 PEP Fellow, explains how chunks of ice in local rivers can build up under the surface of the water and create what is called a "keel" in the RepublicanSuch an obstruction can cause flooding or can cause damage when it breaks apart due to warming and sends ice and high waters downstream, she says. Brigham-Grette also comments in a Western Mass News story about “frazil ice,” semi-frozen water that can build up on ice jams and cause flooding and other damage.