Uzbekistan low temperature is around −23 °C . Uzbekistan has a rich and diverse natural environment. However, decades of questionable Soviet policies in pursuit of greater cotton production have resulted in a catastrophic scenario with the agricultural industry being the main contributor to the pollution and devastation of both air and water in the country. The Aral Sea used to be the fourth-largest inland sea on Earth, acting as an influencing factor in the air moisture and arid land use. Since the 1960s, the decade when the overuse of the Aral Sea water began, it has shrunk to less than 50%
Kazakhstan–Uzbekistan border covering large parts of what are now southern Kazakhstan, Uzbekistan and Tajikistan, as well as Turkmenistan), and the Kirghiz Autonomous Soviet Socialist Republic (Kirghiz ASSR, Kirgizistan ASSR on the map), which was created on 26 August 1920 in the territory roughly coinciding with the northern part of today's Kazakhstan (at this time Kazakhs were referred to as ‘Kyrgyz’ and what are now the Kyrgyz were deemed a sub-group of the Kazakhs and referred to as ‘Kara-Kyrgyz’ i.e. mountain-dwelling ‘black-Kyrgyz’). There were also the two separate successor ‘republics’ of the Emirate of Bukhara and the Khanate of Khiva, which were transformed