Roy Spencer Slays Back

I have recently challenged Roy Spencer to describe the "greenhouse effect" that he so ardently defends together with Fred Singer, Lord Monckton and Richard Lindzen, an effect supposedly resulting from "backradiation" as heat transfer from cold to warm, which I questioned in Slaying the Sky Dragon.

After thinking quite a bit Roy now hits back with Slaying the Slayers with the Alabama Two-Step with yet another defense of the

• “greenhouse effect” which makes the Earth’s surface warmer than it would otherwise be.

OK, so the "greenhouse effect" is something (not defined) with the effect of making the Earth's surface warmer than it would be without the effect (still not yet defined). No wonder that with this circular definition it is impossible to tell how big this effect may be.

OK, Roys presents the following evidence of the "greenhouse effect" (not defined) in as the Alabama Two-Step:

1. Warming can be caused by a decrease in the rate of energy loss by the climate system (trivial statement).
2. Observation of Outgoing Longwave Radiation spectrum (non-trivial).

I show in From Spectrum to Heat Transfer that quick deductions about heat transfer from a spectrum (like Downwelling Longwave Radiation from cold atmosphere to Earth surface) can be completely misleading. Roy's Two-Step thus scientifically represents a Backward Step.

I do not understand what motivates Roy as a skeptic to spend his energy on slaying other skeptics, rather than taking on the real opponents carrying the flag of CO2 alarmism.

And so: Roy, the arguments you are using to slay the slayers, are scientifically trivial. Wouldn't it be much better to use your energy to come up with non-trivial arguments to beat the alarmists?