The Northumberland Association for Progressive Stewardship (NAPS) will host its 4th annual Earth Day Festival in downtown Heathsville on Saturday, April 21st from 9am – 1pm, during the season’s first Farmer’s Market. An Earth Day 5k to benefit local schools will start at 8am. A free tot trot for kids 5 and under starts at 9:15am. Exhibits include a pledge tree, solar energy demo and the area’s first all-electric car. For more information, visit http://napsva.org.