reef degradation

Atoll systems: a critical yet overlooked frontier in coral reef conservation

Atolls cover 27,211 km² of mapped shallow reefscape across 309 Indo-Pacific systems, representing 41.5% of all reef area in the region. That makes them one of the world's major coral reef networks by area, yet they remain largely overlooked in conservation planning. These dynamic reef-ocean-land systems may also harbor corals with elevated thermal tolerance, positioning them as critical local-to-regional coral sources as warming accelerates. Understanding drives protection. For deeper context on accelerating ocean change, see "Ocean's early warnings grow urgent as climate signals accelerate."