Whereas ecocritical studies have often focused on art's evidentiary role--its ability to visualize and prove the urgency of environmental damage--author Carolyn Fornoff argues that what unites the artists under consideration is their use of more hypothetical, uncertain representational modes, or "subjunctive aesthetics." In English, the subjunctive is a grammatical mode that articulates the imagined, desired, and possible. In the Spanish language, it is even more widely used to express doubts, denials, value judgments, and emotions. Each chapter of Subjunctive Aesthetics takes up one of these modalities to examine how Mexican artists, writers, and filmmakers activate approaches to the planet not just as it is, but as it could be or should be.