Professor Christopher Depcik's overarching focus in both research and teaching centers around fostering a sustainable approach to energy and transportation infrastructure. This commitment is exemplified through a comprehensive Feedstock to Tailpipe analysis, utilizing Life Cycle Analysis to evaluate conventional and alternative fuels. Noteworthy aspects of his work include the examination of combustion and exhaust emissions across various combustion regimes, incorporating diverse feedstocks such as waste oils and petroleum, as well as different fuels like biodiesel and glycerin.