That's a whole boatload of misdirection and but maybe.

Yes, the sun shines and brings energy from above, yes the core is hot and brings energy from below.

This was known centuries ago and is accounted for.

"The ethical skeptic" is just parroting another form of denialism; it's not us, it's the flucuations from the sun, it's not us, the core is suddenly radiating more heat outwards, maybe it's the volcanos, perhaps it's cosmic rays.

The thermodynamics here is straightforward enough, we have put a measureably significant volume of thermal insulating gas into the atmosphere and have the records to prove it, more energy from the sun is being trapped, the land | sea surface layer has more energy for storms, tipping climate cell behaviour, heating, etc.

Yep, and in fine doesn't matter if it comes from the sun, the earth core or too many cow farts, the end result is the same

??

We cannot do much about heat from the core, but that's essentially steady state in the short term (50 year time scales) and declining in the long term (heading towards a cold rock).

We cannot do anything about the output of the sun, we can 'shade' ourselves by blowing bubbles in space or by (very very carefully) altering the atmosphere.

We can more directly alter our CO2 output and work on recovery from the atmosphere.

Gah what a load of drivel. Seriously, if this is the kind of site that informs you there are other priceless nuggets on there such as 'China’s CCP Concealed SARS-CoV-2 Presence in China as Far Back as March 2018'. I'm all for engaging the argument but in this case there is this torrent of nonsense that doesn't even begin to compute and which it would take you a lifetime to properly debunk, at which point I don't doubt the author has created some more masterpieces. The name of the blog already sets you up for being gullible.

Don't look up!

We know by direct measurements that the warming is largely due to greenhouse gases, because we can measure radiation inflow and outflow and see that greenhouse gases are stopping incoming radiation from being radiated out and we can see how much is being trapped.

We know it is the greenhouse gases because we can measure the wavelengths of the incoming and outgoing radiation and see from spectrographs of greenhouse gases that the outgoing radiation falls into greenhouse gas absorption bands.

We can tell that the increase in greenhouse gases over the last couple hundred years is largely from human burning of fossil fuels because the carbon in fossil fuels has a different isotope ratio than that of carbon in living or recently living things. (Volcanic greenhouse gases would also have a similar isotope ratio to fossil fuels but we have sufficient monitoring to detect and account for geologic greenhouse gases).