WATCHUNG - Valley View Middle School teacher Morgan Pestorius attended the Earth Education for Sustainable Societies workshop at Carleton College in Northfield, Minn., earlier this month.   The goal of this three-day workshop was to bring together thought leaders in the environmental education community to articulate high-priority needs surrounding earth education.   Participation was determined through a competitive application process. Attendees included informal educators, K-12 educators and university-level formal educators.   Pestorius is a leader in sustainability at Valley View. She oversees various recycling programs including those offered by Trex, Terracycle, and ColorCycle.