Self-declared energy and carbon reduction goals on the part of progressive colleges and universities have driven ground source geothermal space heating and cooling systems into rapid evolution, as part of long-term climate action planning efforts. The period of single-building or single-well solutions is quickly being eclipsed by highly engineered approaches and district-level programs that take advantage of building diversity, hybrid system designs, and central plant integration. In this article, the authors review where the industry has been, where it's headed, and why. They also touch on the benefits that colleges and universities are enjoying by taking advantage of their geothermal resources.