Physicist Illuminated by IPCC Physics

In my search to understand why physicists do not deny the physics of backradiation and thereby give silent support to IPCC climate alarmism, I recall the discussion I had with string physicist Ulf Danielsson in a sequence of remarks to the post What Does a Physicist Say about Climate Science? (in Swedish). 

In this discussion Danielsson states that he cannot see that IPCC uses any fundamental physics incorrectly and thus that the conclusions of IPCC appear to be correct.

Danielsson also states that he does not consider himself to be an expert of climate physics (backradiation/Stefan-Boltzmann) and therefore relies on IPCC.

In other words, as concerns the fundamental physics of climate science, Danielsson

as an expert of fundamental physics, relies on IPCC. It seems that many physicists argue in the same way. 

Now, since IPCC relies on fundamental physics, what Danielsson relies on is a form of backradiation of fundamental physics.  Danielsson as fundamental physicist is thus illuminated by a body of lower expertize, namely IPCC which itself is supposed to be illuminated by the expertize of fundamental physicists. 

In other words, we have an example of a warm body (Danielssson) which is heated by a colder body (IPCC). 

But this is in violation of the 2nd Law. How to resolve this paradox?

Compare with: The degree to which UN IPCC has fooled the world is amazing.