Fashion’s climate ambitions are accelerating at pace. Net-zero targets, decarbonization roadmaps, and sustainability pledges have become standard markers of industry leadership and a respectable brand identity. But beneath this forward momentum, a more uncomfortable reality is emerging, one that is less about what the industry promises, and more about how those promises are being delivered. — By Sakshi Gupta As fashion brands push for rapid emission reductions across their supply chains, a critical contradiction is emerging: the costs of transformation are not being shared equally. Instead, they are being systematically pushed downstream. Nowhere is this more visible than in major manufacturing hubs like Bangladesh, Vietnam, and Indonesia, where suppliers are under increasing pressure to decarbonize production. The fashion industry produces an estimated 3-4% of global carbon emissions, with up to 80% of these emissions coming from manufacturers concentrated in Asia. Recognizing this, brands have committed to decarbonizing their supply chains and sharply cut emissions through innovative technologies. In order to remain competitive, factories are investing in energy-efficient machinery, transitioning toward renewable energy, and pursuing green building certifications. These are not marginal adjustments but capital-intensive restructuring that requires long-term planning and financial stability. Yet the commercial environment in which suppliers operate has hardly changed. Prices and margins remain tightly controlled, contracts are often short-term, and order volumes fluctuate. The expectation is clear: suppliers must comply, but largely at their own expense. High Costs, Little Reward This dynamic has created what can be understood as a growing “climate cost gap” – a structural imbalance between who is expected to deliver decarbonization and who has the financial capacity to do so. The scale of this gap is significant. In Bangladesh alone, the investment required to decarbonize the garment sector runs into billions of dollars, while industry-wide estimates suggest that over $1 trillion will