The global fashion industry, valued at over USD 1.3 trillion, plays a pivotal role in the economy but is also one of the largest contributors to environmental degradation. Responsible for nearly 10% of global carbon emissions-exceeding those from international flights and maritime shipping combined-the industry?s rapid growth has intensified its ecological footprint. Global fibre production has nearly doubled in the past two decades, while consumer demand for cheap, disposable clothing has surged, leading to massive overproduction, textile waste, and microplastic pollution. Fast fashion, a major sub-sector, accounts for nearly half of the industry?s greenhouse gas (GHG) emissions due to its fragmented supply chains, heavy reliance on petroleum-based synthetics, and dependence on air freight for rapid delivery. Current sustainability efforts, though promising, are insufficient to address the climate crisis. This article examines the environmental impact of fast fashion, highlights the urgent need for Sustainable Supply Chain Management (SSCM), and proposes immediate actions such as supply chain transparency, low-impact material use, efficient production planning, circular design, and consumer education. By adopting these measures, brands, policymakers, and consumers can collectively work toward a lowcarbon, resource-efficient, and circular fashion economy.