SCN Family members are invited to volunteer at the Dunbar Retreat House on Earth Day, tomorrow, Thursday, April 20. A group of volunteers and staff from the Western Pennsylvania Conservancy will be there to plant about 350 stems of native trees and shrubs. Volunteers are requested to arrive at 10:00 a.m. and plan to be there until 4:30 p.m. It is recommended that you pack your own lunch as volunteers will be eating on site.