Yonaguni Knoll IV
... that a "lake" of liquid CO2 exists underground at Yonaguni Knoll IV?
... that a "lake" of liquid <span about="#mwt83" class="chemf nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"chem","href":"./Template:Chem"},"params":{"1":{"wt":"C"},"2":{"wt":"O"},"3":{"wt":"2"},"link":{"wt":"Carbon dioxide"}},"i":0}}]}' id="mwB0o" typeof="mw:Transclusion"><a href="./Carbon_dioxide" rel="mw:WikiLink" title="Carbon dioxide">CO<span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br/><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">2</sub></span></a></span> exists underground at <b id="mwB0s"><a href="./Yonaguni_Knoll_IV" id="mwB0w" rel="mw:WikiLink" title="Yonaguni Knoll IV">Yonaguni Knoll IV</a></b>?