Duke University's traditional Race to the Secret Spots, where teams decipher riddles to find secret locations on campus, faced challenges this year as students were stumped by esoteric places like the Sands Building. However, one secret spot, the West Campus Steam Plant, is crucial for Duke's operations, accounting for a significant portion of on-campus emissions. While natural gas has been viewed as a cleaner alternative to coal, new concerns about its environmental impact have emerged, prompting the need for a transition to a more sustainable energy source. Duke's current strategy involves efficiency improvements to the steam distribution system and a shift towards using hot water and heat recovery chillers. However, to address the root problem of relying on natural gas for nearly half of its energy needs, Duke is considering transitioning to hydrogen as a fuel source for its district heating system. Hydrogen, which offers similar properties to methane without being a greenhouse gas, could potentially revolutionize Duke's energy landscape by utilizing waste heat for more sustainable heating.