Final answer:
The warm Southern climate in the United States had several effects, including supporting large-scale plantation-style agriculture and enabling the export of crops. It also attracted emerging information-based companies to the region.
Step-by-step explanation:
The warm Southern climate in the United States had several effects. It supported the growth of large-scale plantation-style agriculture, as the region had poor soils and lacked a viable coastal source of industrial energy. Additionally, the warm climate allowed for the export of crops like rice, indigo, and salt pork, which were exchanged for slaves and other goods. Furthermore, the warmer climate in the Sun Belt, combined with a lower cost of living, has attracted emerging information-based companies to the region.