Unverified50% confidenceFactExact time
Over the past forty years, three large-scale coral bleaching events have occurred globally, one of which, from 2014 to 2017, affected about 75% of the world's coral reefs.
1
Sources
50%
Confidence
Long-term
Relevance
10/13/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedCoral reefs are mainly distributed in tropical and subtropical shallow-water zones between 30 degrees north and south latitude, with a total global coral reef area of approximately 284,000 square kilometers.64% similarUnverifiedGlobal coral reef-related tourism generates approximately 36 billion dollars in revenue each year.63% similarUnverifiedCalifornia's coastline has retreated an average of tens of centimeters per year over the past several decades.51% similar
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