Aldabra Atoll Faces New Threats as Climate Pressures Mount
Scientists warn that rising sea temperatures and ocean acidification are threatening the UNESCO World Heritage Site's unique coral ecosystem.
Sophie Barra
New research published this week warns that Aldabra Atoll, one of the world's most pristine coral ecosystems and a UNESCO World Heritage Site, faces an accelerating threat from climate change. Scientists from the Seychelles Islands Foundation report that sea surface temperatures around the atoll have risen by 1.4°C over the past decade, triggering repeated coral bleaching events.
The research, conducted over three years, documents a 23% decline in live coral cover in the most affected zones. Ocean acidification — caused by the absorption of excess atmospheric CO2 — is further weakening coral structures, making recovery increasingly difficult.
"Aldabra has survived for millions of years," said lead researcher Dr. Emile Joubert. "But the pace of change we are now seeing is unlike anything in the geological record. Without urgent global action on emissions, we risk losing this irreplaceable ecosystem within decades."
The Seychelles government has called for stronger international commitments at the upcoming UN Climate Conference, pointing to Aldabra as a symbol of what is at stake for small island developing states.
