Industrial waste oil, vessel spills and sunken WWII vessels continuously threaten marine and terrestrial ecosystems. Millions of tons of oil enter oceans annually, forming large oil slicks that block oxygen and sunlight, causing coral die‑offs, mangrove degradation and collapse of marine food chains. Major incidents like the Deepwater Horizon spill released 3.2 million barrels of oil, contaminating over 2,500 km² of sea, killing hundreds of thousands of seabirds and otters, and costing fisheries and tourism over $100 billion.

On land, improper waste oil disposal pollutes soil and groundwater, degrading soil quality and accumulating toxins that threaten food safety and public health. About 8,500 sunken WWII vessels still leak an estimated 15 million tons of oil, worsening marine pollution and endangering Pacific island livelihoods. The UN notes oil pollution directly hinders progress toward clean water and marine conservation SDGs.

In 2026, Middle East geopolitical conflicts disrupted shipping in the Strait of Hormuz, breaking global oil supply chains and triggering the worst energy crisis in decades. The IEA reports daily global oil supply disruptions exceed 14 million barrels (≈15% of global demand), with cumulative losses surpassing 1 billion barrels, inventories depleting rapidly, and the supply‑demand gap widening.

The crisis has hit households and industry worldwide. India, relying on imports for 85% of its oil (half via the Strait), faces a 50% supply gap, with people queuing overnight for LPG and restaurants shutting down. Southeast Asian nations impose fuel rationing and close stations; Laos has shut over 40% of stations, while Thailand’s diesel prices surge and temples suspend cremations for lack of fuel. In Europe and Africa, factories halt production, electricity prices soar, inflation rises, and poor households face fuel poverty.

The IEA warns the global oil market will enter a “red zone” in July–August 2026 during peak summer demand, worsening the crisis. In this context, industrial oil purification, waste oil regeneration and high‑efficiency filtration technologies have become critical solutions to alleviate shortages, cut costs and ensure continuous equipment operation.