<< BackHelp us continue to GREEN Le Moyne! A school with 23,000 alumni typically uses 15 tons of wood annually in its communications, which is equivalent to 105 trees. HELP US SAVE TREES: Send us your email address! In 2007, 1,942 lbs. of paper were used for alumni mailings. In 2009, we used only 799 lbs. by using e-mail.