There is no simple answer here…it’s a mix of scenarios: migration, resources, cultures, historical needs, and govt policies, and corruption. The US population

There is no simple answer here…it’s a mix of scenarios: migration, resources, cultures, historical needs, and govt policies, and corruption. The US population expanded from the North East where the Industrial Revolution began. Economic jobs boomed and so did wealth. California created a tech boom, and Texas created an oil boom. While southern and middle states lack technology, industry, precious metals. Major European countries (cold) joined forces economically to prevent ruin, while middle eastern countries (warm) face USSR style corruption. In Russia, most of the countries resources are reverted to Moscow or St Petersburg. While warmer AND colder areas of the country lack basic funding/upkeep. South Africa has the highest GDP in Africa primarily due to historical colonialism stabilizing the area and turning it into a major port. While surrounding countries are 1/10th the GDP due to govt policies and corruption. The east side of Australia is heavily built up compared to the rest of the country. This is due to port access and farmland while the west coast is much more dry and rocky. Obviously this isn’t exhaustive, but serves the point. There is no single answer and “warm is poor” only applies to VERY select regions.