Yomiuri Shimbun: Salmon may disappear from the nation’s rivers by the end of this century if sea temperatures continue to rise as a result of global warming, according to researchers. The projection was made by a team of researchers headed by Prof. Masahide Kaeriyama and Prof. Michio Kishi of Hokkaido University. A separate study showed that the number of salmon returning to their native rivers has been declining on the eastern Korean Peninsula, which is located on about the same latitude as …