What is so difficult to understand about the physics of greenhouse gas absorption of outgoing infrared radiation?

The positive energy of the outgoing radiation would be balanced by a flow of negative energy particles into the black hole.

A screen worn on the head will heterodyne the outgoing radiation in a random fashion, make it absolutely undecipherable.

The quantum fluctuations at that tiny point, in Hawking's original calculation, contain all the outgoing radiation.

Earth's radiation balance is the equation of the incoming and outgoing thermal radiation.

Because it does not directly interact with incoming or outgoing radiation, it has an indirect effect on climate.

In this case I should imagine it happened on a clear and cloudless night when there would be a lot of outgoing radiation.

Feynman supposed the outgoing radiation is absorbed by matter, gas clouds, out there in the universe.

This increases the amount of outgoing radiation as the Earth warms.

The net effect should be a reduced optical thickness for outgoing infrared radiation and a reduced cloud lifetime.