No I dont, because it is.
And what is UV radiation then do you think? Energy perhaps? You spoke of IR, well UV is on the other side of the visible spectra, as you even mention yourself, the HIGHER energy side... IR has a low energy count per photon, UV has a high energy count per photon. And what does energy "unleashed" do? Oh my, it causes heat! What a surprise.
The BIG difference is that UV is so energyhigh that it can also cause direct damage to the skin beyond sunburn.
Try arguing that with a doctor specialised in burns or skin treatment. Prepare to get laughed at.
Nope, but that´s irrelevant in this case because it´s the same kind of injury.
In general no it´s not, but that´s not because it isnt the same kind of damage caused, but in how it was caused.
You can cause damage identical to sunburn by applying heat or fire, it´s just not easy.
Only in regards to human senses. You dont feel UV like heat, but you do feel the heat it causes on you.
DId you know that there´s been attempts to build "deathrays" using UV? Sometimes called heat rays...
Yes, because if you have something hot, it will radiate heat in the form of IR. Once again, because the most common way to radiate heat is by IR, that does not mean UV doesn´t cause heat.
Try being outside, unprotected, completely without having been out in the sun anything seriously for the last few years, between 10 and 14 somewhere near the equator. You will likely have painful sunburns before even half an hour has passed. Unless you started out with dark skin, but even then, the absence of sunlight for a few years will degrade the inherent protection in the skin enough that you will probably still get burned, though it might take twice as long or something.
Burns are, and sunburns are just slow and lowenergy burns. Perfectly viable.