In celebration of the fiftieth anniversary of Earth Day, the Journal of Moral Theology is pleased to publish the revised proceedings from the inaugural meeting of “Laudato Si’ and the U.S. Catholic Church: A Conference Series on Our Common Home." Convened by Creighton University and Catholic Climate Covenant in June 2019 this conference series seeks to help the US Catholic community more robustly incorporate Laudato Si’ and the Church’s teachings on ecology and climate change across eight of its key ministries. Quantitative data, experience, and conversations suggest that the US Catholic Church has yet to begin to integrate Laudato Si’— which builds on twenty five years of papal attention to ecology and climate change as moral issues—with the priority, scope, and urgency anywhere near what is commensurate with the science and the magnitude of what Pope Francis now rightly refers to as our world’s “climate emergency.” In response, the conference series seeks to inspire and equip the US Catholic community to more sufficiently enact Laudato Si’ in fidelity to Church’s evangelical mission.