Cornell University is exploring geothermal heating as a sustainable method to warm its Ithaca campus. The project, titled Earth Source Heat, proposes to circulate initially cool water through subsurface reservoirs, where it will be naturally heated by the warmer temperature of the rocks. Earth Source Heat (ESH) includes a research collaboration between faculty, staff, and students across several science and engineering departments with the campus facilities staff. ESH is a major component of Cornell University’s proposed solutions to achieve carbon neutrality by 2035. There are two websites that describe the project -- a research page that focuses on detailed scientific and engineering studies: http://deepgeothermalheat.engineering.cornell.edu and a more general page: http://earthsourceheat.cornell.edu/, with a broader treatment of the motivation and stages of development of the heat production project. Selected technical reports are published on ecommons so that they will be preserved for posterity.