The 12th annual Green Festival at the D.C. Convention Center, 801 Mt Vernon Pl NW, is scheduled from May 6-8. The 3-day event is dedicated to the promotion of local green economies and sustainability practices. The Green Festival strives to bring together the world’s most trusted companies, innovative speakers, national and localinnovative businesses, conscious consumers and pioneering thinkers, in one place to promote the best in sustainability and green living. Mothers are free for the entry weekend. Kids 16 and under are also free. Seniors and Military receive a discount at the door. Students receive free admission on May 6 and receive a discount May 7 and 8 at the door. Hours are from noon- 6 p.m. on May 6, 10 a..m.-6 p.m. on May 7, and 10 a.m. -5 p.m. on May 8.