Fifth-graders can help increase public awareness about trees in New York by participating in the annual National Arbor Day Poster Contest. The deadline is Dec. 17. The annual Arbor Day Poster Contest is sponsored by the New York State Department of Environmental Conservation and the Department of Agriculture and Markets. Students are asked to create an original poster depicting this year’s contest theme: “New York’s Forest Where We Live!” The New York State winner will have his or her artwork…