For several years now, theoretical approaches on care have allowed this concept to become more complex (Tronto, 2009; Paperman, 2015; Hirata, 2021), including issues of inequality in social relationships. While these works do not include in their development issues relating to spatial and territorial inequalities, other works are beginning to shed light on the relationships between care and space and/or territories. Michel Lussault (in Beau, Larrère, 2018) draws on the ethics of care by proposing the notion of spatial care, in order to think the vulnerability of contemporary habitats as a constructive force. By extending Joan Tronto’s definition, Lussault defines spatial care as “a generic activity that includes everything we do to maintain, perpetuate and repair our habitat and the principles of our cohabitation, so that we can live as well as possible in our ecumene” (Lussault, 2018: 207). This approach to inhabited spaces and their contemporary issues makes the metamorphoses at work as much an object of attention as a projectual aim. Beyond the spatial and material transformations considered within spatial care, this session proposes to walk alongside the ethics of care by focusing on practices that raise a particular concern for sensitive and ambient qualities, which, to borrow an expression from Jean-Paul Thibaud (2015: 21), question less the “what of the surrounding world than the how of being-in- the-world”. The spatial care invites us to consider the inventive practices of non-institutional stakeholders, who are still too often unrecognized, and thus to rethink the frameworks for action on the ground. Spatial care calls us to pay attention to both sometimes fragile collectives (more or less informal groups trying to invent new ways of living), and to solutions locally constructed in the light of specific spatio-temporal situations. It also encourages us to look at the transformations of inhabited spaces beyond the completion of development projects: what are the practices of caring for spaces on a daily basis? The focus on ambiance in this frame of thoughts invites us to question the practices, stories and gestures of attention and care towards ambiances, whether they are undergone, desired, designed, experienced and shaped on a daily basis. And, beyond gestures, we can also look at the ways in which this ambient and sensitive preoccupation translates into reinvented spatial configurations and material arrangements. Faced with the need to rethink the role of ambiances and the sensitive approaches in times of Anthropocene, and considering contemporary socio-ecological crises, this session aims to propose a reflection on ambiantal care within the Ambiances 2024 Congress. To this end, a non- exhaustive set of questions is raised: How should we approach the intersections between care and ambiances? What are the attentional modalities and situated practices that need to be developed to care for fragile atmospheres, local weather conditions in crisis, and unstable or changing environments? How can we take responsibility, at our own level, in the context of socio-ecological crisis? How caring is translated in material work? What kind of contact with the objects of care does this imply? How can we ensure that the reception of care is recognized and, in this way, judge its appropriateness? Does caring for ambiances contribute to the raising of new kinds of public to consider in the frame of spatial transformation? These questions can be addressed from both theoretical and empirical/operational perspective. Proposals may come from researchers working on these issues, or from professionals with a reflective view of their own practices.