So I am to believe a proven ignoramous on a message board rather than a real scientist? Methane clathrate events have always included anoxic oceans. Hardly a coincidence.
Methane Catastrophe
5. METHANE CATASTROPHE (Continental Margin Methane Release)
Perhaps the first scientist to have realized that permafrost and seafloor methane hydrate release
may have played a role in the end-Permian extinction was Doug Erwin (1993), following the proposal by Paull (1991) tying regression to hydrate release by depressurization. Erwin indicated that methane and carbon dioxide (from both the oxidation of exposed continental shelf organic carbon and methane, "and
possibly other sources") would have contributed to global warming and "
possible oceanic anoxia" (1993, p. 256). Oceanic anoxia is an excellent mechanism for killing off aerobic marine organisms,
but Erwin was clearly hesitant about invoking it for the end-Permian, hedging his tentativeness with the words "possible" and "perhaps" (1993, p. 256).