Columbia Heights Library, 3939 Central Ave. NE. For more information, call 763-706-3690 or visit chplmn.org. Registration required for most programs and opens 4 weeks in advance.  Scrolling Through Adolescence: Helping Teens Thrive Online: Wednesday, Sept. 23, 5-6 pm. Is social media helping or hurting today's teens? Explore the research about how teens use social media and its impact on their development and well-being. Parents and caregivers will learn practical strategies to support healthy digital habits, strengthen communication, and help teens…