The world is witnessing a dramatically different process to that of powers colonizing and expanding: Nations that surrender portions of their territories because of climate change and its associated sea-level rise. At the melting of the earthly and oceanic realms, unprecedented issues of abandonment, natural concern, and social inequality arise in parallel to a new geographical type: territories of environmental, legal, and social blurriness or blurritories. The aim of Blurritorialism is to construct a scenario of transition for these surrendered spaces. A strategy is implemented through building time life-supports constructed thanks to the in-situ expertise of the site selected: Jean Lafitte, Louisiana.