- RESEARCH HIGHLIGHT
Earth’s deepest ‘blue hole’ holds a cache of ancient carbon

A research platform floats above the Yongle blue hole, whose 130-metre-wide mouth is surrounded by coral reefs. Credit: P. Yao et al./JGR Biogeosciences
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Nature 578, 492 (2020)
doi: https://doi.org/10.1038/d41586-020-00495-6