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 after the May 2005 unrest and Uzbekistan demanded that the U.S. leave Karshi-Khanabad). It is a member of the United Nations, the Euro-Atlantic Partnership Council, Partnership for Peace, and the Organization for Security and Cooperation in Europe (OSCE). It belongs to the Organisation of Islamic Cooperation (OIC) and the Economic Cooperation Organization, which comprises 7 Central Asian countries: Pakistan, Uzbekistan, Kazakhstan, Turkmenistan, Afghanistan, Kyrgyzstan and Tajikistan. 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. In 1999, Uzbekistan joined the GUAM alliance (Georgia, Ukraine,