Katie Rock is the Campaign Representative for Iowa with the Sierra Club’s “Beyond Coal” campaign. She will be traveling from Des Moines to take part in two different events in Sioux City on Tuesday, January 28 th . Rock talked to Siouxland Public Media’s Sheila Brummer about her thoughts on the impact of coal energy and the transition to cleaner forms of energy. Rock’s first event is at noon at the Holiday Inn in Sioux City. She will be sharing her mission with attendees of the Siouxland