Where are they getting these ridiculous concepts??
Fred Flintstone drove an SUV, ‘nuff said.
climate affecting human behavior, cultural evolution and innovation is and OLD idea. I believe the historian Toynbee was among the first to articulate this idea.
To me, it is a reasonable idea. I add to it that local diet can be a factor too. Many local tribes live in areas where there are basic deficiencies like iodine, or toxic excesses like arsenic in well water (a common problem in Bangladesh).
So, it follows that some cultures would have had optimal diets enhancing health and hence cultural development.