Well, Britain gave material naval aid so that southern cotton could make it to their ports, often to be sold back to the union for extreme profit. Kinda like how US Jews sold guns from union factories to the south in exchange for black market cotton. I don't think cotton production really shifted significantly through the war.
The south made the grave miscalculation that a world spanning naval empire couldn't find dirt somewhere else to grow cotton.
Well, Britain gave material naval aid so that southern cotton could make it to their ports, often to be sold back to the union for extreme profit. Kinda like how US Jews sold guns from union factories to the south in exchange for black market cotton. I don't think cotton production really shifted significantly through the war.