South Aral Sea Syr Darya, would be diverted in order to irrigate cotton and food crops in Kazakhstan and Uzbekistan. In 1986, due to an accelerated loss of water, the Aral Sea was split into northern and southern parts; the northern part is the current North Aral Sea. In 2007, the western basin had a salinity of 70 g/l and the eastern basin 100 g/l. Once the water level falls below the connecting channel (elevation 29 m), the salinities can be expected to diverge further. Under current conditions, the eastern basin may receive water from the Amu Darya in wet years, fluctuating in
Sea level rise challenging, due to our imperfect understanding of many aspects of the climate system. As climate research leads to improved computer models, projections have consistently increased. For example, in 2007 the Intergovernmental Panel on Climate Change (IPCC) projected a maximal rise of through 2099, but their 2014 report raised the high-end estimate to about . A number of later studies have concluded that a global sea level rise of this century is "physically plausible". The contributing factors to sea level rise between 1993 and 2018 are thermal expansion of the oceans (42%), melting of temperate glaciers (21%), Greenland (15%) and Antarctica