Any other method of cooling will not be lasting. As shown here, even in the Ordovician, Oxygen was used up in oxidizing methane to CO2, left lowered oxygen levels, High CO2 levels and a 1’C warmer temperature than present day. If we are going to remove methane, we are going to use up our oxygen; this cannot be stopped. The runaway methane event now underway could be shortened and oxygen conserved with the use of a separation membrane that cleaves O2 and releases the atomic oxygen to go and react with water so that it can do even more. The O atom reacts with water, forming 2OH, providing a free doubling of oxygen. Using the OH magnification, and the shorter route to destruction that is offers, makes the process twice as effective and it uses only 3O2 net, or 30%, rather than 10 O2 net without help. No where else will there be such an opportunity to conserve oxygen while going through a methane emergency. Nowhere else will there be an opportunity to shorten the lifetime of methane as well. Oxygen has been there doing this since the beginning.

No one is serious unless they are talking about using hydroxyl radicals to combat the methane release. We cannot rely upon the private sector to pay for this measure either. It will have to be paid for by governments. Thankfully compared to many project budgets, it is not that expensive. The problem is that we are in an emergency situation and we absolutely should not wait for the Paris Climate agreement. The longer we wait, the more damage will be left from the delays.

Ordovician period:

Mean atmospheric O 2content over period duration	c. 13.5 vol %[1][2] (68 % of modern level)
Mean atmospheric CO 2content over period duration	c. 4200 ppm[3] (15 times pre-industrial level)
Mean surface temperature over period duration	c. 16 °C[4] (2 °C above modern level)
Sea level (above present day)	180 m; rising to 220 m in Caradoc and falling sharply to 140 m in end-Ordovician glaciations[5]

Source: Wikipedia

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