Stratospheric cooling is what dominates the polar vortex. That is the reference to the winter / summer reference.
As for the Arctic heating up twice as fast as and all that exposed ocean that is further releasing the dominant ghg's into the arctic regions thus further warming the troposphere and thus further cooling the stratosphere.
Yeah uhmm I dont buy your theory yet. As you said they still need ALOT of work on it to do.
If you feel a tropospheric interaction is detectable in data then it should be very very easy to find.
Again going back to one of the first post I did the lower jet stream is moving poleward as per ob's.
Their is nothing in the IPCC that supports your argument that increased ghg's can cause the polar vortex to wobble or even the lower altitude jet stream to deviate.
