Whats Up/Heads Up [Corrected 02/03/13]

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02.02 Chess tournament The Super Saturday Team Chess Tournament for Middle School Youth starts with registration at 9:15 a.m. Saturday at the Youth Learning Center, 4471 Olive Street. The event is co-sponsored by the Chess Club and Scholastic Center of St. Louis. The entry fee is $5 per player, and teams may be formed in advance or they will be formed at the door. Prizes will be awarded to the top 10 players and the top three teams. Registration is available online at www.saintlouischessclub.org or at the door. Tournament play begins at 10:15 a.m. A free lunch is provided to all players. 314-531-9916 or www.ylc-stl.org

02.05 Climate change program Science Behind Climate Change will be presented at 7:30 p.m. Tuesday at the Living World at the St. Louis Zoo in Forest Park. Presentations will be given by Donald Wuebbles, an atmospheric science professor at the University of Illinois; David Lobell, an assistant professor of environmental Earth system science at Stanford University; and Adrin Cerezo, associate director of conservation education research at the St. Louis Zoo. The Academy of Science-St. Louis is sponsoring the program in partnership with the zoo. Free. www.academyofsciencestl.org

02.06 Tree professionals conference More than 200 tree specialists will gather from Wednesday through Feb. 8 at the Hilton St. Louis Frontenac hotel, 1335 South Lindbergh Boulevard, to discuss the destruction that the severe drought and an invasive species of beetle have caused to forests and trees throughout the Midwest. The event is the 2013 Midwestern Chapter of the International Society of Arboriculture annual conference and trade show. The conference sessions are free and open to the public. The conference begins at 1 p.m. Wednesday. www.mwisa.org

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