European Tribune - Climate Science: Got Doom Today? (Part 2)
it shows that with an increasing temperature there is an increasing amount of CH4 in the atmosphere. But in one case the D/H deviation does not change at all, or in the posted graph, it lags behind the CH4 increase and when it does change, the deviation decreases. In a final devastating blow to the clathrate gun, Sowers made a model that simulated what would happen if all the CH4 released in the atmosphere would be from the clathrates with a -189 per mil D/H signature. This gives the black line in the graph and shows that the simulation resulted in an increase (less negative) of the D/H deviation, the precise opposite of what the record is showing. In one stroke, Sowers delivers damning evidence that the clathrate gun hypothesis in the earth's most recent history is not even smoking. In fact, it provides the question whether it was loaded in the first place. And this is good news, since it indicates that the methane stored in the oceans is a LOT more stable than what many people were speculating. It shows that even with abrupt warming events in our recent history, the clathrates contribute insignificantly to increasing global CH4 concentrations.
it shows that with an increasing temperature there is an increasing amount of CH4 in the atmosphere. But in one case the D/H deviation does not change at all, or in the posted graph, it lags behind the CH4 increase and when it does change, the deviation decreases. In a final devastating blow to the clathrate gun, Sowers made a model that simulated what would happen if all the CH4 released in the atmosphere would be from the clathrates with a -189 per mil D/H signature. This gives the black line in the graph and shows that the simulation resulted in an increase (less negative) of the D/H deviation, the precise opposite of what the record is showing.
In one stroke, Sowers delivers damning evidence that the clathrate gun hypothesis in the earth's most recent history is not even smoking. In fact, it provides the question whether it was loaded in the first place. And this is good news, since it indicates that the methane stored in the oceans is a LOT more stable than what many people were speculating. It shows that even with abrupt warming events in our recent history, the clathrates contribute insignificantly to increasing global CH4 concentrations.
I note that I didn't get around to bring back the pictures back on-line. Will be done... This discussion on methane clathrates is like a bad zombie movie.
