Professor Peter Ward (Professor, Sprigg Institute of Geobiology, The University of Adelaide) explains the interconnections of rising carbon dioxide levels and flood basalt, and how it leads to anoxic oceans (with Hydrogen sulfide). Ward explains how today’s CO2 levels will result in sea level rise with disrupting implications for crops and how deglaciation will ultimately result in a stagnant ocean, hinting at past extinction events. Warming is most pronounced at the poles, hence the amplification there. Professor Kevin Schaefer (NSIDC), Ben Abbott (University of Alaska) and Dr. Charles Miller (NASA/JPL) explain how Arctic heating is thawing the permafrost.
Wikipedia: A flood basalt is the result of a giant volcanic eruption or series of eruptions that coats large stretches of land or the ocean floor with basalt lava. Flood basalt provinces are often called traps, which derives from the characteristic stairstep morphology of many associated landscapes.
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Abrupt permafrost thaw increases climate threat