During my conference, I will propose a semiotic segmentation of four examples illustrating ecological integration in art, architecture, urban planning, and an alternative vision of social and urban spatiality. This study will allow us to understand the emergence of ecological spaces in our society.We will start with the artistic use of water by Bill Viola. His installations do not merely reflect personal and collective psyches; they also symbolize ecological cycles and the elemental power of water.In architecture, the CopenHill project in Copenhagen demonstrates the articulation between ecological functionalities and urban recreation. Designed by the BIG architectural firm, this multifunctional building combines a waste treatment facility with an artificial ski slope on its roof, ushering in a new era in sustainable architecture.In the field of urban planning, the High Line in New York shows how abandoned urban infrastructures can be transformed into living and ecologically active public spaces by integrating vegetation, pedestrian paths, and recreational areas to promote biodiversity and ecological awareness.Finally, the Naturbyen project by the EFFEKT studio in Denmark illustrates the reinvention of suburban development with designs centered on nature, fostering sustainable living and community-oriented urban planning, and promoting the creation of ecological habitats in urban environments.These examples provide an overview of how semiotics can extract ecological practices through its holistic (intersemiotic) vision, promoting a sustainable approach to environmental challenges.