Arab societies today face growing environmental challenges, such as water scarcity, forest degradation, and air pollution. With the rise in awareness of these issues, environmental texts have emerged as a means of raising consciousness and motivating action. Among the most prominent rhetorical devices used by writers and experts are vocative appeals and warnings, due to their strong ability to influence readers and draw their attention to the dangers surrounding the environment. First: Vocative Appeal as a Gateway to Environmental Awareness The vocative form possesses a communicative function that goes beyond merely calling the addressee; in environmental texts, it becomes a tool for stirring a sense of collective responsibility. When the writer says, “O you who love the beauty of this earth, preserve the purity of its air,” the address is not aimed at a single individual but at a broad audience sharing an emotional connection with the earth. Such expressions contribute to: Making the reader feel personally involved in the environmental issue. Transforming the environmental problem from a scientific topic into a matter of identity and belonging. Creating a direct connection between the text and its audience. The vocative form also enhances emotional engagement; when readers are addressed directly, they become more receptive to environmental messages and more willing to adopt the behaviors encouraged by the text. Second: The Role of Warning in Building Awareness of Environmental Dangers Warning in environmental texts reveals to readers the scale of threat facing the earth and humanity if environmental neglect continues. It is expressed through strong linguistic cues such as “Beware,” “Be alert,” “Do not waste,” and “Take care,” which instill a sense of responsibility. Warnings do not merely alert; they place the audience before clear consequences, such as: “Beware of polluting the river, for this endangers the health of the entire community.” “Do not overconsume electricity, for energy is not an inexhaustible resource.” Through such phrasing, danger shifts from an abstract idea to a reality the reader can visualize, increasing the message’s impact and prompting reflection on daily behaviors. Third: Interaction Between Vocative Appeal and Warning in Environmental Discourse When vocative appeal and warning come together in a single text, the message becomes more effective. The vocative form captures the reader’s attention, and the warning presents the reality as it is, with the consequences of environmental neglect. For example: “O children of this nation, beware of destroying the soil, for it is the foundation of our food and the sustenance of future generations.” This combination enables the text to: Present the danger directly and clearly. Connect the audience to the issue emotionally and practically. Enhance awareness and encourage responsible environmental behavior. Fourth: The Impact of These Devices in Supporting the Concept of Sustainability Vocative appeals and warnings help cultivate an environmental culture based on conserving resources and protecting natural systems. Sustainable behavior requires impactful communication, and these rhetorical devices achieve swift and clear influence by addressing both mind and emotion. They contribute to: Spreading environmental awareness among different social groups, especially youth. Strengthening the sense of shared responsibility toward natural resources. Supporting environmental initiatives through strong and direct language. Conclusion A study of vocative appeals and warnings in Arabic environmental texts confirms that linguistic discourse is not merely a means of expression but a tool for change. Today’s environment needs impactful communication capable of guiding behavior and building sustainable awareness—something vocative appeal and warning succeed in achieving thanks to their rhetorical force and ability to reach readers in a clear and direct manner.