UNC’s Earth Week celebration continues with several events scheduled for Earth Day, which this year falls on Thursday, including an Earth Day Fair on Polk Place starting at 10 a.m., a walking tour of campus trees with Michael Dirr at 3:30 p.m. and a showing and discussion of the documentary Food Fight from 7 to 9 p.m. Details of these and other events are at carolinagreen.unc.edu