Geography of Kazakhstan the water in Kazakhstan is polluted by industrial effluents, pesticide and fertilizer residue, and, in some places, radioactive elements. The most visible damage has been to the Aral Sea, which as recently as the 1970s was larger than any of the Great Lakes of North America save Lake Superior. The sea began to shrink rapidly when sharply increased irrigation and other demands on the only significant tributaries, the Syr Darya and the Amu Darya (the latter reaching the Aral from neighboring Uzbekistan), all but eliminated inflow. During the Soviet Era, Kazakhstan received water from Tajikistan and Kyrgyzstan, and Uzbekistan, Turkmenistan,
Seto Inland Sea on a cruise on the Setuchi. Some sites along the Seto Inland Sea were featured in eighth-century Japanese literature, both in prose and in verse, including "Kojiki", "Nihon Shoki", and "Man'yōshū". Since some sites were used as places of exile, their feeling and landscape were evoked in waka. In fiction, in "The Tale of Genji", Genji fled from Kyoto and resided in Suma (now a part of Kobe) and Akashi for two years. In medieval literature, because of the Genpei War, the Seto Inland Sea is one of the important backgrounds of "The Tale of the Heike", particularly in its