The consequences of climate change affect millions of people around the world, many of whom are compelled to abandon their residences as a direct or indirect result of climate change (it is estimated that there will be 150 million or more climate-displaced persons by 2050). Notwithstanding the advent of assorted legal and political developments in recent years, particularly at the regional level, they remain devoid of international protection, lacking as they do an independent status. Consequently, international economic and climate migrants are frequently compelled to embark on perilous journeys through the use of smuggling services. In this regard, this study focuses on the relationship between climate change and smuggling along the Spanish migratory routes, given its impact on the European context in terms of numbers and mortality. Therefore, this study examines the impact of climate change as a motivating factor within the context of international mixed migration and smuggling networks, which represent the primary means of entering the EU.