"Lost Paradises - Landscape colonization and destruction of eco and anthroposystems" is a program launched in 2018. It aims to contribute to the scientific community and beyond, by developing knowledge about pictures, texts and transformations of places, to the current movement of environmental humanities, that seeks to overcome the dualism between nature and culture and to rethink human action on Earth in response to climate and ecological emergencies, both in terms of the intentions behind these productions, as well as their modes of presentation, of reception and continuity of their effects. The aim of this blog is to support an environmental history of colonization that exclusively involves representation issues. This is due to the profile and specialization of the project initiators.The purpose of this blog is to report on the research programme and its interactions with its many partners (including French and foreign museums, libraries, archives and research teams) and its current events.