In the early 1960s, Soviet planners expanded large irrigation networks to grow cotton and other crops across Central Asia. This sharply increased withdrawals from the Amu Darya and Syr Darya rivers, the Aral Sea’s two main inflows. The shift set the Aral Sea on a long-term decline by reducing the water that could reach the lake.
By 1961, monitoring stations near the river mouths recorded a major fall in water reaching the Aral Sea, reflecting rapidly rising irrigation withdrawals. This was an early, measurable warning that the lake’s water balance was being broken. From this point, shrinking shorelines and rising salinity increasingly shaped local livelihoods and health risks.
A major section of Turkmenistan’s Karakum Canal—begun in 1954—was completed in 1967, moving Amu Darya water across the Karakum Desert for irrigation and water supply. While it supported agriculture, it also contributed to reduced downstream flows toward the Aral Sea. The canal became part of the broader set of water projects that reshaped Central Asia’s environment and economy.
As the Aral Sea shrank and became saltier, native fish populations crashed. By the early 1980s, salinity had risen enough to wipe out most of the sea’s traditional fisheries, removing a major source of jobs and food. Communities that once relied on fishing fleets and processing plants faced rapid unemployment and out-migration.
By 1984, commercial fishing on the sea itself had stopped, reflecting ecological collapse and the loss of viable fish stocks. The change marked a clear economic turning point: the Aral Sea was no longer functioning as a productive fishery. The shutdown also signaled deeper disruption of delta wetlands that had supported biodiversity and local land use.
By 1987–1988, water levels fell so much that the lake separated into two main water bodies: the North (Small) Aral in Kazakhstan and the South (Large) Aral in Uzbekistan. This split changed the problem from managing one shared lake to managing multiple shrinking basins with different prospects for recovery. It also complicated regional water politics after the Soviet Union’s collapse.
After independence, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan created the International Fund for Saving the Aral Sea (IFAS) to coordinate financing and action on the disaster’s impacts. IFAS provided a formal regional framework to address water management, ecosystem damage, and social and economic harms. Its creation reflected recognition that the crisis crossed borders and required joint planning.
In the mid-1990s, the region launched the first Aral Sea Basin Program (ASBP-1), aiming to improve environmental conditions and reduce socio-economic damage. The program emphasized practical steps such as better water management and measures to stabilize affected areas. While results were uneven, ASBP-1 helped set priorities and attracted international attention and support.
In June 2001, Kazakhstan and the World Bank formalized a major project focused on saving the North Aral Sea by improving Syr Darya flows and water control infrastructure. Experts judged that restoring the entire Aral Sea was unrealistic with available water, so the strategy targeted a smaller, achievable recovery. This decision marked a shift from broad aspirations to a more limited, engineered restoration approach.
In August 2005, the Kok-Aral Dam was completed to hold Syr Darya water in the North Aral Sea instead of letting it flow into the lower South Aral basin. The dam helped raise water levels in the North Aral and reduce salinity, supporting a partial return of fish and local economic activity. It also made a tradeoff more explicit: improving the north meant less water reaching the south.
In summer 2014, satellite images showed the eastern basin of the South Aral Sea had fully dried for the first time in modern history. The event highlighted how far the southern lake had deteriorated and how sensitive it was to both water withdrawals and drought. The exposed seabed also increased the area vulnerable to wind-blown salt and dust.
On May 18, 2021, the UN General Assembly adopted a resolution declaring the Aral Sea region a ‘zone of ecological innovations and technologies.’ The move aimed to encourage research, investment, and cooperation to address desertification, public health risks, and sustainable development in the affected areas. It underscored that the crisis is ongoing and requires long-term solutions beyond a single engineering project.
By 2024–2025, Kazakhstan and the World Bank moved toward a second phase of work to further stabilize and improve the North Aral Sea system. Plans discussed included additional water-management structures and potential reconstruction or upgrades to the Kok-Aral Dam to support higher water levels and healthier delta wetlands. This phase reflects a present-day outcome: partial recovery is possible in the north, while the wider basin still faces hard limits from water demand, climate stress, and competing national priorities.
Aral Sea desiccation and the environmental crisis in Central Asia (1960s–present)