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the claim

Live coral cover on the world's reefs has declined by about half since the 1950s.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that live coral cover on the world's reefs has declined by about half since the 1950s?

Yes. A Natural History Museum news article reports that the area coral reefs occupy worldwide fell by 50% in the half century from 1957, directly matching the claim. Other items note regional or genus-specific coral cover declines but do not give the global half-since-1950s figure.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 4
Over half of coral reef cover across the world has been lost since 1950 | Natural History Museum
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Over half of coral reef cover across the world has been lost since 1950 | Natural History Museum. (n.d.). nhm.ac.uk. https://www.nhm.ac.uk/discover/news/2021/september/over-half-of-coral-reef-cover-lost-since-1950.html

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More for · 3
Coral Gardens Reef, Belize: A refugium in the face of Caribbean-wide Acropora spp. coral decline
2020
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Greer, L., Clark, T., Waggoner, T., Busch, J., Guilderson, T. P., & Wirth, K. (2020). Coral Gardens Reef, Belize: A refugium in the face of Caribbean-wide Acropora spp. coral decline. doi.org. https://doi.org/10.1371/journal.pone.0239267

The Relationship between Conservation Education and Tourists' Attitudes and Behavioral Intentions towards Coral Reef Sustainability: A Quantitative Study
2023
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Marie, H. W. (2023). The Relationship between Conservation Education and Tourists' Attitudes and Behavioral Intentions towards Coral Reef Sustainability: A Quantitative Study. eric.ed.gov. https://eric.ed.gov/?id=ED633130

A geological perspective on the degradation and conservation of western Atlantic coral reefs.
2016
Get citation
Kuffner, I. B. & Toth, L. T. (2016). A geological perspective on the degradation and conservation of western Atlantic coral reefs.. doi.org. https://doi.org/10.1111/cobi.12725

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