Right, I wasn’t looking for a response about methane, more just excitedly listing, I guess. My motivated thinking, going in, is that there’s plenty of exposed methane hydrates and free methane on shallow parts of the continental shelves exposed to much warmer waters in the Arctic and Siberia. A Nature paper from Ruppel is a bit old, and includes discussion of deeper deposits in warmer waters much further south. The paper does make exceptions for shallower deposits, as in the Arctic sea. She notes technical difficulties in resolving the origin of the methane even in those cases, but there’s been efforts to resolve the questions since then. A later Reviews Of Geophysics paper confronts predictions about sources and distributions.I have to dig into that.
Carolyn Ruppel is also a proponent of drilling undersea methane for fuel, and has been for the last decade. Treatment of the melting arctic as a tipping point seems politically unpopular, now that various projected benefits of its melt have been identified. We can drill for natural gas or oil, fish, establish shipping lanes, or fight over sovereignty up there, but I’m not seeing much government attention on the ice-free Arctic as an actual climate problem.
Still, Ruppel holds an important position, and I will give her research more attention now. Thank you.
Yes, as far as sea level rise, I read the sections you mentioned, thank you. The West Antarctic is less of an immediate concern than Greenland, so I am puzzled why you haven’t mentioned Greenland explicitly. Your discussion of sea level rise doesn’t include Greenland’s contribution, but Greenland will melt before the West Antarctic, and it holds several meters of sea level rise in its ice. I believe that Greenland’s melt could shutdown the AMOC as well.
I think processes like fires on permafrost land go ignored in models of permafrost thaw, just like lubrication of the bottom of Greenland Ice goes ignored. Some discussions about climate change suggest that people move north, but north into areas of melting permafrost? That seems dubious.
Anyway, thanks again, I’ll come back to you with whatever I actually conclude once I compare the two points of view that I have on arctic methane:
dangerous tipping point
harmless, possibly irrelevant, source of natural gas
Right, I wasn’t looking for a response about methane, more just excitedly listing, I guess. My motivated thinking, going in, is that there’s plenty of exposed methane hydrates and free methane on shallow parts of the continental shelves exposed to much warmer waters in the Arctic and Siberia. A Nature paper from Ruppel is a bit old, and includes discussion of deeper deposits in warmer waters much further south. The paper does make exceptions for shallower deposits, as in the Arctic sea. She notes technical difficulties in resolving the origin of the methane even in those cases, but there’s been efforts to resolve the questions since then. A later Reviews Of Geophysics paper confronts predictions about sources and distributions.I have to dig into that.
Carolyn Ruppel is also a proponent of drilling undersea methane for fuel, and has been for the last decade. Treatment of the melting arctic as a tipping point seems politically unpopular, now that various projected benefits of its melt have been identified. We can drill for natural gas or oil, fish, establish shipping lanes, or fight over sovereignty up there, but I’m not seeing much government attention on the ice-free Arctic as an actual climate problem.
Still, Ruppel holds an important position, and I will give her research more attention now. Thank you.
Yes, as far as sea level rise, I read the sections you mentioned, thank you. The West Antarctic is less of an immediate concern than Greenland, so I am puzzled why you haven’t mentioned Greenland explicitly. Your discussion of sea level rise doesn’t include Greenland’s contribution, but Greenland will melt before the West Antarctic, and it holds several meters of sea level rise in its ice. I believe that Greenland’s melt could shutdown the AMOC as well.
I think processes like fires on permafrost land go ignored in models of permafrost thaw, just like lubrication of the bottom of Greenland Ice goes ignored. Some discussions about climate change suggest that people move north, but north into areas of melting permafrost? That seems dubious.
Anyway, thanks again, I’ll come back to you with whatever I actually conclude once I compare the two points of view that I have on arctic methane:
dangerous tipping point
harmless, possibly irrelevant, source of natural gas