CFAES’s School of Environment and Natural Resources hosts a screening of the award-winning film “Watershed: Exploring a New Water Ethic for the New West” from 6-8 p.m. Sunday, Sept. 29, at the Wilma H. Schiermeier Olentangy River Wetland Research Park, 352 West Dodridge St., Columbus. Jerry Tinianow, Denver’s chief sustainability officer, will provide introductory remarks. David Rutter, Mid-Ohio Regional Planning Commission, will give a local perspective on the impacts of climate change in the Scioto River watershed. An optional tour of the park takes place at 5 p.m. Admission and parking are free, but freewill donations will be accepted. Whole Foods will provide refreshments. Details: mccready.20@osu.edu. Watch the trailer (2:02).