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the claim

More than 80 percent of the ocean is unexplored.

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 more than 80 percent of the ocean is unexplored?

Yes. Two sources state the exact figure: a peer-reviewed review attributes to NOAA the estimate that eighty percent of the oceans remain unexplored, and a deep-sea drone paper says more than 80 percent has not been investigated precisely. NOAA's own page and a book describe most of the ocean as largely unexplored without giving the 80 percent threshold.

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

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Evidence for · 4
How much of the ocean has been explored? - NOAA Ocean ExplorationLock
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How much of the ocean has been explored? - NOAA Ocean ExplorationLock. (n.d.). oceanexplorer.noaa.gov. https://oceanexplorer.noaa.gov/ocean-fact/explored/

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More for · 3
Ocean of life : how our seas are changing
2012
Get citation
Callum, R. (2012). Ocean of life : how our seas are changing. archive.org. https://archive.org/details/oceanoflifehowou0000robe

Development of deep-sea drone by spherical ultrasonic motor
Get citation
Development of deep-sea drone by spherical ultrasonic motor. (n.d.). cir.nii.ac.jp. https://doi.org/10.21595/vp.2018.20142

From Ocean to Medicine: Pharmaceutical Applications of Metabolites from Marine Bacteria.
2020
Get citation
Santos, J. D., Vitorino, I., Reyes, F., Vicente, F., & Lage, O. M. (2020). From Ocean to Medicine: Pharmaceutical Applications of Metabolites from Marine Bacteria.. doi.org. https://doi.org/10.3390/antibiotics9080455

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