The objective of this paper, which is intended as a reference document, is to establish the current state of existing knowledge on the impacts of climate change on the biodiversity of the European Union overseas entities. This document starts with a thematic analysis of European overseas biodiversity, the reality of climate change, the new threats it presents for natural resources, and the resulting socio-economic implications. This analysis presents a general overview of the global and sectoral data related tooverseas territories, and highlights certain notable examples in the individual regions. The document then provides a geographical analysis of the impacts of climate change on biodiversity in the 28 European Union overseas entities. These have been divided into seven large geographical areas: the Caribbean, the Indian Ocean, the South Pacific, Macaronesia, the Amazon, the Polar Regions and the South Atlantic. For each entity a non-exhaustive overview of the current state of biodiversity, observed or potential impacts of climate change on the natural resources, and the resulting socio-economic implications are presented. For some regions, examples of strategies to adapt to or mitigate the effects of climate change that deserve particular mention have been highlighted. (UICN)