“…In the United States, as far back as 2008, Joshua Busby—one of today’s foremost U.S.-based climate-security nexus scholars—was already arguing that, “That climate change potentially poses a direct threat to the U.S. homeland and its overseas interests suggests that the subject warrants serious attention” (Busby, 2008, p. 470). Since then, there has been a growing body of academic literature that explore the link between climate change and U.S. homeland security (see e.g., Butts, 2014; Lanicci & Ramsay, 2014; Lanicci et al, 2017; O’Sullivan, 2015; Ramsay et al, 2021b). This body of knowledge frames domestic security as homeland security (see Section 2 of the article for further discussion on this) and establishes that climate change negatively impacts U.S. homeland security through its threat multiplier effect on already existing hazards, risks, and/or threats (see e.g., Lanicci & Ramsay, 2014; O’Sullivan, 2015; O’Sullivan & Ramsay, 2015; Ramsay & O’Sullivan, 2013).…”