What's the difference between northerners and southerners buying vegetables?

The north is dry and cold, and you can enjoy dishes in winter. It's humid in the south, and a dish will wither, mold and rot after being stored for a day or two. Climatic conditions determine cultural differences and create different lifestyles. Besides, it's not that southerners are stingy and cook so little. Northerners eat more, not because they are heroic. It's just a cultural difference. ?