Some scientists are linking the phenomenon to warmer waters and ocean acidification caused by high levels of carbon dioxide in the atmosphere. (scientificamerican.com)
Work has also been hampered because researchers must return to the surface for fresh air every three hours — the cave contains high levels of carbon dioxide. (discovermagazine.com)
An increase in temperatures as a result of global warming may lead to significantly higher levels of carbon dioxide being released into the atmosphere. (gelbspanfiles.com)