Russia and Central Asian countries join forces to solve water problems and restore the Aral Sea Modernization of hydroelectric power plants, research into the state of the Aral Sea and joint environmental missions are the main areas of cooperation. After the modernization of the Kairakum hydroelectric power station in Tajikistan, its capacity increased by 38%. The work was also carried out at the Toktogol hydroelectric station in Kyrgyzstan. Russian and local scientists study the characteristics of changing soils and the dynamics of groundwater. Russia and Uzbekistan agreed on joint environmental missions.