Recent years have seen the popularization of the carbon footprint concept. Applied at different scales and in different contexts, it indicates the negative contribution of an actor or project to global warming. This concept can also be applied to savings, whose impact, although indirect, is equally significant (1). This indirect impact should not, however, overshadow the potential of finance, if it is used to help our societies make the transition, particularly in the face of the immense challenges posed by the climate crisis.