There are both pros and cons to the Columbian Exchange. The Columbian Exchange is the contact between the New World and the Old World. Trades happen between these two continents and that began the Columbian Exchange. The pros to the Columbian Exchange are that it helps trade goods to be transported and used in new places. Trade goods such as sugar canes, cattle, and tropical fruits are transported to the New World. The Old World would then receive goods such as tomatoes, potatoes, and corn from the New World. Goods are being introduce to both the New and Old World. The cons of the Columbian Exchange are that the Old World people brought disease to the New Wolrd, such as small pox. Since the genes of the New World people can't consist of the disease, most of the people die. Also, some people in the Old World were afraid to try the New World items. However, they later overcome the thought, and it became part of their daily diet or use. I think that the Columbian Exchange effected more on the pros than cons.