Coral-fringed atolls are among the landforms most exposed to global warming, yet many may have an overlooked advantage: intact ecosystems. According to a report from Inside Climate News, atolls with native vegetation and thriving seabird populations are not passive victims of erosion. Instead, they behave as "naturally active" landforms, capable of trapping sediment and building elevation as seas rise.
The mechanism hinges on the way plants and birds shape the island surface. Dense root systems hold sand and rubble in place, while seabird guano enriches soils and supports vegetation that captures windblown material. These processes can help an atoll keep pace with moderate rates of sea-level rise, the report suggests.
Rewilding—removing invasive species, replanting native flora, and protecting seabird nesting sites—may therefore offer a nature-based strategy for climate adaptation. The article notes that such efforts are not a substitute for global emissions cuts, but they could give atoll communities more time and reduce reliance on expensive seawalls. The report is based on a single analysis, so its conclusions are presented as promising rather than proven at scale.