Annual Earth Day Interfaith Worship Service. “Back to the Garden: Theological and Personal Reflections on Earth Day.” 7 p.m., First Unitarian Church, 5650 S. Woodlawn Ave., 773-324-4100, firstuchicago.org, $5 suggested donation. Preceded by a 6 p.m. dinner. Presented by The Hyde Park and Kenwood Interfaith Council. For more information, send an e-mail to firstname.lastname@example.org or leave a message at 312-458-9313.