The Weston Observatory, Boston College’s center of geophysical research, offers periodic colloquiua open to the public. The next one will be on November 6, 7-9PM, on The Influence of Climate Change on the Greenland Ice Sheet, presented by Bost4on College Prof. Mark Behn. The observatory is at 361 Concord Road in Weston. Seating is limited and reservations are required. Email anastasia.macherides@bc.edu to reserve a seat.