Joanne Yestramski, left, Brian Rist, John Lebeaux and Ruairi O’Mahony at the unveiling of the Rist Urban Agriculture Farm (Jon Winkler / Lowell Sun) Brigid Archibald Connector Editor The Office of Sustainability, the Climate Change Initiative and research on clean energy and sustainability will soon come together under a new umbrella institution at UMass Lowell,…