The Hopkinton Center for the Arts presents “Changing Tides,” an art exhibit focusing on the effects of climate change, starting on July 3 and running through Aug. 29 from 8 a.m.-5 p.m. Curated by Rebecca McGee Tuck, it features the artwork from the i3C artist group as well as eco-friendly artists in diverse mediums. For more information, visit hopartscenter.org.