[co-author: Pratishtha Date] In January 2021, President Biden signed an executive order "Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis."[1] This order provided a clear signal that the Biden administration was recommitting the United States to climate initiatives "guided by the best science."[2] With a renewed federal focus on addressing the climate crisis, federal agencies have been tasked with "captur[ing] the full cost[] of greenhouse gas emissions as accurately as possible" in order to engage in informed decision and policy making.[3] Consequently, agencies have been examining both old and new methods of measuring greenhouse gas emissions. One such measure that government agencies have readopted is the "social cost of carbon."