The phenomenon known as the climate crisis is one of the greatest paradoxes and threats facing the modern world, a term that has been frequently heard, particularly since the 2000s. Modern production processes, emissions from sectors known as heavy industry, and the intense competitive environment within the capitalist system are cited as the primary drivers. However, beneath the surface, the common thread driving industries to produce more—despite their differing demographic and socio-economic characteristics—is the existence of individuals constantly driven to spend and consume more. The phenomenon creating this situation is modern consumer culture. It is an undeniable reality that various elements—such as brand perception, the brand image businesses strive to create, the symbolic meanings of brands, the status they convey to consumers, the influence of reference groups, and the power of social media—reinforce the dark side of modern consumer culture. In this study, the historical evolution of consumption culture and the symbolic meanings created by the marketing world are first examined. Subsequently, developments in sectors such as ready-to-wear and electronics—where product lifecycles are short and carbon footprints are relatively high compared to other sectors due to harmful gas emissions—are highlighted through various examples. In addition, the study will address the paradoxes created by practices such as green consumption and recycling, which are discussed within the framework of green marketing and sustainability—concepts that emerged in response to ecological challenges. In the final chapter, rather than focusing on creating demand for consumers within the traditional marketing approach, the book presents theoretical and practical action plans within the frameworks of the sharing economy, anti-consumerism, and, finally, degrowth.