@georgeob1,
I did not state or even imply that volcanism contributes to warming--maybe you're just reacting to your own preconceptions; perhaps you should go back and read my original response again. I pointed out that the Deccan Traps event is the only event of which we know when such an event had any significant and long term effect. I specifically brought up the Tamboro and Krakatoa eruptions to show that ordinarily, with only the exception of the Deccan Traps, volcanism
has no long term effect on climate.
Personally, I don't think that the warming is a product of anthropogenic CO2 pollution. That is a point I have made more than once in this thread. There are warming and colling cycles. This was first recognized, obliquely, by historians, then confirmed by archaeologists and geologists, and finally adopted by climatologists. This was about cooling events, and three particular events were dubbed
the 8.2 kiloyear event,
the 5.9 kiloyear event and
the 4.2 kiloyear event. Interesting in themselves for their historical significance, they are germane here because after each such cooling cycle, a warming cycle occurs.
We are now well into the latest warming cycle. The last cooling cycle did not attract the attention of historians, archaeologists and climatologists precisely because it occurred in historical times, and its effects have only been seen piecemeal. But that event bottomed out in the early 18th century. The winters of 1708-09 and 1709-10 were particularly severe, and came after a century or more of precipitous cooling. By 1600, lakes in northern Scotland froze over by the beginning of August. The Thames river routinely froze in the winter, and froze so solidly during many winters, that booths selling just about anything, and even playhouses were erected on the ice.
However, the significance is that those cold spells, which in geological terms can be seen to have been cold snaps, occurring precipitously but only lasting a few centuries, is that they are followed by centuries, several centuries, of steady warming. Based on the patterns of the kiloyear events, we are likely a couple of centuries into a warming event which will reach its peak in five to eight centuries (perhaps longer), before the next sudden cooling event. The climate is warming; no matter how much money the energy industry and other self interested capitalists spend on their anti-warming propaganda, that is a fact which only the willfully ignorant are going to ignore.
Sure politicians run around making gestures, most of which are ineffective. That's what they do for a living. But doing nothing is stark stupidity. If your basement is flooding, it is not a good idea to piss down the stairs and invite all your buddies over to do the same.