On Friday, 7 August 2015 18:08:18 UTC+1, JohnD wrote:

Forget Dawlish, but observe that no-one else here, not one single person,
has posted support for this notion. Remember also that the readership here
contains a very considerable amount of scientific expertise and insight, yet
no-one, no-one at all, believes 'cold radiation' is a credible concept.

What they believe is not scientific proof, and what you are using is a fallacious ad hominem argument. Attacking me rather than my arguments. What is your answer to my four questions? Let's discuss the science, not resort to political point scoring.

The experiment showing that cold can be radiated was performed in the 18th Century and it is described in this paper:
http://www2.ups.edu/faculty/jcevans/...experiment.pdf
Pictet's experiment is not well known, so it it is not surprising that people in this newsgroup have not heard of it. But he did show that if the radiation from a flask filled with ice is focussed with mirrors onto a thermometer then its temperature will fall. And this happened before Herschel "discovered" infrared radiation.

Actually, it all came about as a result of Horace-Benedict de Saussure FRS, described by R.G. Barry as the First Alpine Meteorologist", discovering the greenhouse effect. You can read about it here in my translation of Chapter 35 of his book "Voyages dans les Alpes".
http://www.abmcdonald.freeserve.co.u...APTER%2035.pdf

Cheers, Alastair.