Tape 5. In the third interview session, conducted on March 17, 1999, Rosolie discusses the official designation of salmon and other fish in the Columbia River Basin as endangered. He speaks about the importance of clean rivers and estuaries to fish population recovery efforts. He discusses the energy needs of businesses along the Columbia River, particularly aluminum factories, as well as the pollution they produce, and shares ideas for curbing the emission of pollutants worldwide. He speaks about the amount of irrigation needed for farms and cattle, and about the cost of that water. He closes the interview by sharing his thoughts about the management of the Columbia River Basin.