The Marshall Islands is a nation of widely dispersed, low-lying coral atolls and islands, and with climate change causing sea levels to rise and shifting weather patterns, the Marshall Islands is faced with flooding, heat stress and drought. The Marshall Islands Climate and Migration Project studies the multicausal nature of Marshallese migration, as well as its impact on migrants themselves and communities in the Marshall Islands. This policy brief highlights key findings on migration patterns, drivers and impacts, and discusses the tension between being prepared to move and fortifying to stay in place.