The document discusses sustainability efforts at the University of Massachusetts Amherst (UMass Amherst). It outlines UMass Amherst's phased approach to sustainability following John Kotter's model of leading change. This included establishing urgency through grassroots committees, gaining executive support, developing a vision through plans like the Framework for Excellence, and integrating sustainability into campus operations, buildings, curriculum, and culture. It analyzes UMass Amherst's progress using systems thinking and case studies of peer institutions. Key lessons include the importance of comprehensive planning, governance, leadership, research, and modeling sustainability best practices to benefit society.