What Scarborough nature reserve plan means for South China Sea

China’s decision to establish a national nature reserve at Scarborough Shoal – known as Huangyan Island in China and Panatag Shoal in the Philippines – has hit regional headlines as the plan involving the contested South China Sea feature swiftly became a diplomatic flashpoint. Approved by China’s State Council and announced by the National Forestry and Grassland Administration, the plan covers some 3,500 hectares of ecologically sensitive reef and waters, divided into “core” and “experimental” zones. China frames it as part of efforts to protect biodiversity, ensure the sustainable use of marine resources and meet international conservation commitments. The Philippines has formally lodged a diplomatic protest, describing it as an encroachment on its exclusive economic zone and sovereign rights. Filipino fishermen are anxious, worried about tighter restrictions on their traditional fishing grounds. The United States has been quick to voice support for Manila, condemning what it described as “China’s destabilising plans” and a “coercive attempt” to advance claims inconsistent with the 2016 arbitral tribunal ruling. Meanwhile, observers in China speculate the new reserve could pave the way for more routine Chinese patrols around the shoal, using coastguard vessels, drones and aircraft. A marine area designated as a nature reserve under Chinese law is broadly equivalent to what is known internationally as a marine protected area – the establishment of which is a growing global trend. Supporters see the move to protect Scarborough Shoal’s fragile reef as evidence of Beijing’s readiness to assume its environmental responsibilities and integrate ecological priorities into maritime governance. In the South China Sea region, government reactions vary. None of the other claimant states – Vietnam, Malaysia, Indonesia and Brunei – has made any official statement. The silence may reflect caution: jurisdictional implications aside, ecological protection is a goal hard to oppose. The Association of Southeast Asian Nations has preferred not to escalate tensions in the South China Sea disputes, concentrating instead on negotiations for a binding code of conduct with China. This highlights the complex regional dynamics at play: shared ecological interests coexist with unresolved sovereignty disputes. Under the UN Convention on the Law of the Sea, all states have a duty to protect and preserve the marine environment. Historically, environmental initiatives have proceeded amid jurisdictional uncertainty. In the Mediterranean, for example, coastal states have created a network of marine protected areas despite unsettled boundaries. In the Southern Ocean, the Antarctic Treaty System has designated large marine sanctuaries through consensus, despite the absence of recognised sovereignty. Whether a Scarborough Shoal nature reserve can join the list of constructive precedents will depend on the initiative’s transparency, scientific grounding and adherence to recognised standards. It is not urgently necessary to revisit the entrenched debates over sovereignty, jurisdiction or the legitimacy of historical claims in the South China Sea. The more pressing question is whether initiatives like the Scarborough reserve can be reframed as opportunities to ease, rather than exacerbate, tensions. Can environmental stewardship help build confidence? Might ecological concerns provide common ground for dialogue amid territorial disagreements? One avenue is joint scientific research. If China were to invite scientists, including from Southeast Asia, to join ecological surveys and monitoring within the proposed reserve, it would enhance transparency and credibility. Collaborative data collection on coral health, fish stocks and pollution could provide a factual basis for sustainable management. Another possibility is coordinated fisheries management, with China and the Philippines agreeing on seasonal restrictions or catch quotas grounded in ecological data. China has said there was a “temporary special arrangement” in 2016 allowing Filipino fishermen limited access to disputed areas though Manila disputes its scope and implications. Of course, trust deficits run deep after years of maritime stand-offs. Manila views any new Chinese measure as a disguised assertion of sovereignty. For China, inviting joint management may be seen domestically as a compromise of control. Yet history suggests functional cooperation can coexist with unresolved disputes. For instance, the US and Soviet Union collaborated on environmental and scientific initiatives despite the Cold War. In 2018, Arctic and non-Arctic states agreed to a fisheries moratorium in the Central Arctic Ocean amid broader geopolitical strains. The implications of a Scarborough reserve therefore extend beyond its modest geographical scope. If implemented unilaterally, with increased patrols and limited access, it may reinforce perceptions of exclusion and exacerbate mistrust. But if developed transparently, with space for dialogue and scientific collaboration, it could serve as a pilot for cooperative conservation in contested waters. Either trajectory will shape the regional narrative: is China using environmentalism as a veneer for control, or as a genuine opening for cooperation? The broader lesson is the South China Sea need not remain trapped in a circle of zero-sum competition. Conservation is one of the few areas where interests converge: all littoral states depend on healthy fisheries, resilient reefs and clean waters. Climate change and pollution are shared threats that transcend national boundaries. By thinking creatively, governments could transform initiatives like the Scarborough reserve from symbols of rivalry into platforms for stewardship. Ultimately, the reserve is both ecologically significant and politically sensitive. Its meaning will be defined less by Beijing’s decree than by how it is implemented and whether stakeholders seize the opportunity for constructive engagement. For a region too often associated with confrontation, framing Scarborough Shoal as a space of shared responsibility rather than exclusive control could mark a modest but meaningful step towards a more stable maritime future.

What Scarborough nature reserve plan means for South China Sea

.css-1c6uqr6{color:inherit;font-weight:inherit;font-size:inherit;font-family:inherit;line-height:inherit;overflow-wrap:break-word;}Done badly, it would exclude and exacerbate mistrust. Done well, it could pave the way for a model of conservation in contested waters

Done badly, it would exclude and exacerbate mistrust. Done well, it could pave the way for a model of conservation in contested waters