Geography of Uzbekistan Kazakhstan, also yielded about 60% of the total volume of Central Asia's emissions of harmful substances into the atmosphere. Because automobiles are relatively scarce, automotive exhaust is a problem only in Tashkent and Farghona. The reduction of water in Uzbekistan has resulted in soil degradation, and the spread of the salt from the evaporated Aral Sea has contaminated the surrounding soil. The soil has lost much of its water due to the increased surface irrigation. The irrigation of farmlands with water from the Aral Sea has resulted in increased salinization of the soil, causing the farmland to be less productive
Foreign relations of Uzbekistan Azerbaijan and Moldova), which was formed in 1997 (temporarily making it GUUAM until Uzbekistan withdrew in 2005). Uzbekistan is also a member of the Shanghai Cooperation Organisation (SCO) and hosts the SCO’s Regional Anti-Terrorist Structure (RATS) in Tashkent. Uzbekistan also joined the new Central Asian Cooperation Organization (CACO) in 2002. The CACO consists of Uzbekistan, Tajikistan, Kazakhstan, and Kyrgyzstan. It is a founding member of and remains involved in the Central Asian Union, formed with Kazakhstan and Kyrgyzstan, joined in March 1998 by Tajikistan. Antti Turunen, the head of the Finnish Foreign Ministry's Eastern European and Central Asian department, led