A new comprehensive high-resolution assessment of the world’s corals reveals that the total area covered by coral reefs is more extensive than previously believed.
Shallow coral reefs span approximately 348,000 square kilometres (or about 134,000 square miles) globally, exceeding previous estimates ranging from roughly 154,000 to 301,000 square kilometres.
This research, led by the University of Queensland, highlights the extensive coverage of coral reefs, surpassing the area of New Mexico.
Mitchell Lyons, a researcher at the University of Queensland in Australia and the paper’s lead author, said, “This is the first accurate depiction of the distribution and composition of the world’s coral reefs, with clear and consistent terminology.”
“This data will allow scientists, conservationists and policymakers to better understand and manage reef systems,” Lyons added.
Coral reefs, supporting about a quarter of marine species and the livelihoods of about one billion people, face grave threats from human-induced climate change.
Rising ocean temperatures and increasing water acidification are endangering these delicate ecosystems.
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Mass coral bleaching events and infectious diseases rapidly decimate corals worldwide, which is expected to worsen as Earth warms.