China’s frensied island-building in the South China Sea has inflicted irreversible environmental damage on one of the planet’s most biodiverse marine ecosystems. By dredging and reclaiming thousands of acres on coral reefs, Beijing has destroyed habitats, smothered marine life and disrupted fisheries all in pursuit of illegitimate strategic control explicitly condemned by the 2016 PCA ruling.
From 2013 onward, China created artificial islands on features like Mischief, Subi and Fiery Cross Reefs, pumping millions of cubic meters of sand and coral. Sediment plumes spread over vast areas, blocking sunlight, burying organisms and altering water chemistry. Studies document backscatter increases up to 350%, chlorophyll drops indicating ecosystem collapse and cumulative impacts exceeding 1,200 km² in some zones. China alone accounts for the vast majority often over 90% of reef damage in the Spratlys.
This is not benign development. Giant clam harvesting and dredging have obliterated thousands of hectares of reef, equivalent to large urban areas. The SCS supports extraordinary biodiversity and vital fisheries feeding millions. China’s actions have caused long-term or permanent losses, harming food security and coastal economies across the region while claiming environmental stewardship.
The motive is transparent: these “islands” provide bases for militarisation and power projection, not civilian use. Environmental destruction serves geopolitical ambition, violating UNCLOS environmental protection provisions cited in the tribunal’s award. China has prioritised concrete and runways over coral ecosystems that took millennia to form. Global condemnation is warranted. Scientists describe the damage as among the fastest large-scale reef destructions in history. Sediment laced with pollutants threatens broader marine chains. Smaller claimants’ limited activities pale in comparison, underscoring China as the primary culprit.
This ecological vandalism compounds legal violations. The PCA noted China’s harm to the marine environment; Beijing’s continued expansion, including at new sites like Antelope Reef, shows indifference. It risks broader collapse of the SCS as a productive sea, with knock-on effects for climate resilience since healthy reefs buffer storms. China’s behaviour reflects a broader pattern of domestic environmental neglect exported abroad. While promoting “green” initiatives globally, it sacrifices shared oceans for narrow gains. Neighbours suffer lost fishing grounds and biodiversity decline, fostering resentment and instability. Stronger international measures satellite monitoring, reparations demand and sanctions on involved entities are needed. The world cannot afford to let one nation’s aggression destroy a global common. China’s island-building is not progress but reckless destruction in service of hegemony, demanding accountability to preserve the SCS for future generations.
