Coral reefs under threat
Coral reefs cover approximately 600 thousand square kilometers of the earth’s surface and are important ‘hot-spots’ for biological diversity, containing approximately one quarter of the world’s marine species. Anthropogenic carbon dioxide (CO2) emissions have increased significantly putting coral reefs under threat from increased sea surface temperature, sea level rise, decreased pH and reduced carbonate saturation states. Pollution and over-fishing are placing added stress on these already vulnerable ecosystems. Monitoring and protection is vital.