In what way did uncle Tom’s cabin change the attitude of northern about slavery they began to view it as a political problem. They began to view it as an economic problem. They began to view it as a moral problem they began to feel it was none of their concern.

They began to view it as a moral problem. Uncle Tom's Cabin caused many Northerners to see slavery as a great moral evil and sparked increased opposition to the institution. The novel depicted the cruel treatment of slaves and the moral implications of owning another human being, leading to a shift in attitudes towards slavery in the North.