With the global scenario of increasing demand for metals and minerals, countries are in search of alternate sources of metals for the future. Indeed, the benthic floor of the deep sea is known to be a valuable repository of polymetallic nodules (PMN). They have garnered significant attention due to their potential as a source of strategic metals critical to various industries, including electronics, renewable energy, and aerospace. Among the valuable elements found in PMNs are copper, nickel, cobalt, and manganese. In this context, deep sea mining has gained significant attention as a potential solution to the increasing global demand for valuable minerals. However, this industry poses a substantial threat to fragile marine ecosystems. The extraction process generates sediment plumes, releasing harmful substances into the water column and impacting marine life. The prolonged settling time, which can range from a few to several years, amplifies the potential environmental impact. It underscores the need for comprehensive and focused studies to ensure that deep sea mining projects strike a balance between economic development and ecological preservation. This study examines its environmental effects and assesses flocculants’ effectiveness in reducing them. The experimental results of the efficiency of guar gum as a flocculant in accelerating the sediment settling speed in deep sea mining operations is also included alongwith. The addition of guar gum was found to reduce the turbidity of the system. Additionally, this paper scrutinizes the regulatory and policy frameworks required to incentivize the adoption of sustainable mining methods.