Tues, April 22; 7-9 p.m.; Immaculate Heart of Mary Church, 2855 Briarcliff Road NE, Atlanta. Join Immaculate Heart of Mary’s Laudato Si’ Action Team to celebrate Earth Day in the Parish Hall. Keynote speaker is John Lanier, executive director of the Ray C. Anderson Foundation, and founding member of Drawdown Georgia, a movement designed to scale the most effective climate solutions for the state of Georgia. His program is “The Power of One: Lessons in Climate Leadership.” Come and be inspired, all are welcome. To register, email: ihmlaudatosi@gmail.com.