They did say 'crazy amounts' in the title, as if they were weened on social media as a baby, so I'm not in the slightest surprised, thanks for saving me a pointless read!
P.s. as you say, celciheit is clearly the current preferred measurement...
If the only variables they accounted for were human population, surface temperature and land use then they've omitted one of the biggest influences - pesticides (and other deleterious, persistent chemicals). Also, soils in agricultural management have long been known to be deteriorating due to intensive modern practices, but that may less of a factor.
Haha, I thought you'd say that! Well no, given how widspread and old religion and spiritually is that's not possible for anyone but a child raised by wolves to say it hasn't been an influence!
My centre point of discussion is to look back before, wayyyy before any of these ideas could be cultivated. I feel that you are starting somewhere at a point where these morals are in the process of being developed and refined, if in early days, so your arguments are somewhat self supporting (happy to be corrected, just the impression I'm getting).
You say there's no point in discussing what cannot be proven with evidence...well that makes this whole discussion somewhat defunct then unfortunately!! I'd already written the below so I'll leave it should you wish to discuss further despite this :)
You say it was necessary for formation of larger social groups etc but...I go back to my basic starting point of "I don't like.." As you say there needs to be discussion, development and unity of belief for it to become a recognisable, repeatable, lasting moral system. But that just demonstrates my point that basic, individualistic morals came first then once complex language started to develop then shared likes and dislikes become more prevalent. Imagine what it was like before? Just take a look at chimpanzees.
The developement of shared beliefs, religious or otherwise, will no doubt have occurred simultaneously. Overlapping, replacing and morphing over millions of generations. Some ideas being discarded/diminished as other new ones arose - e.g. that great 1 in 1000 year volcano eruption replacing the end of the 20 year flood occurance, to use my natural disaster example again.
But "I don't like..." is still the starting point for pretty much any discussion about morals as far as I believe.
Glad you took the time to read this. The paragraph "Religion likely evolved by building on morality, introducing supernatural agents to encourage cooperation and restrain selfishness, which enhanced group survival. Additionally, emotions like disgust play a key evolutionary role in moral judgments by helping to avoid threats to health, reproduction, and social cohesion." Describes much of what I've discussed so far. Though my thoughts re disasters is omitted. I think that they are very significant if you look at e.g. Roman and Greek gods.
You say that it's required to bring together larger populations, but plant cultivation - the beginnings of farming will be far more significant.
As a slightly sideways thought, take a look at e.g. African tribal social structures - relatively small population groups (villages) may exists with low/intermittent positive interaction (not fighting over resources), but can still share similar or near identical spiritual beliefs and moral codes. I.e. one does not automatically determine the other. They can develop side by side or independently.
Direct link to the report
https://euromedmonitor.org/en/article/6795/Starving-civilians-in-northern-Gaza-lured-to-aid-sites-and-executed,-revealing-brutal-pattern-of-Israel%E2%80%99s-genocide