runs a single stream recycling program, and its dining services department has begun composting food waste and unbleached paper napkins. Bowdoin received an overall "B−" grade for its sustainability efforts on the College Sustainability Report Card 2009 published by the Sustainable Endowments Institute.
In 2003, Bowdoin committed to achieving LEED-certification for all new campus buildings. The college has since completed construction on Osher and West residency halls, the Peter Buck Center for Health & Fitness, the Sidney J. Watson Arena, 216 Maine Street, and 52 Harpswell all of which have attained LEED, Silver LEED or Gold LEED certification. The new dorms partially use collected rainwater as part of an advanced flushing system. The new Park Row Apartments and Schiller Coastal Studies Center are Passive House Certified through Phius.
== Campus ==
=== Brunswick main campus ===
Bowdoin College's main campus in Brunswick ranges over an area of 215 acres (87 ha) and includes 120 buildings, some of which date …