The wind blows across Country A and into Country B. Country A has fossil fuel–burning power plants, but a low level of air pollution. Country B has power plants run by moving water (hydroelectric plants), but a higher level of pollution. What’s happening? What could the two countries do to correct the situation? Explain how this pertains to international air-pollution laws. A large amount of air pollution is attributed to manufacturing. Some would argue that it is not technologically possible, or economically efficient, to eliminate this pollution. How would you respond to this argument?