Several Earth Day events and activities are taking place at the University of Minnesota on Wednesday. From 11 a.m. to 2 p.m. in Northrop Plaza, Beautiful U Day, Greeks Going Green and Coca-Cola presented the Environmental Awareness Fair. Students brought nonperishable food items for Sharing and Caring Hands and learned about environmental student groups. Spring Jam and its partners Beautiful U Day and Greeks Going Green coordinated Earth Day Park Clean-Up. From 3 to 6 p.m., students can participate by picking up litter in College Park in St. Paul at 1356 Raymond Ave. and Van Cleve Park in the Como Neighborhood at 901 15th Ave. SE. More information can be found at the Spring Jam website at www.sua.umn.edu/events/springjam. With global warming as a current hot topic, Emeritus Professor Dr. Richard H. Skaggs from the geography department will give a lecture titled âÄúMinnesota Climate Extremes in the 21st Century.âÄù The lecture, 3:30 to 5 p.m., will be in room 307 in 1701 Classroom Building. Andrew Light, philosophy and environmental policy professor and director for the Center for Global Ethics at George Mason University, will give a lecture examining the role ethicists play in climate change. The lecture, âÄúEthics and Climate Change,âÄù will be in room 275 in Nicholson Hall from 4 to 5:30 p.m. Greenlight and the College of Design have been sponsoring weekly environmental film screenings on Wednesdays. April 22âÄôs film, âÄúToo Hot Not To Handle: Global WarmingâÄù will be in room 225 in Rapson Hall from 6 to 7:30 p.m.