Aral Sea: The Lake We Drained Into Desert copertina

Aral Sea: The Lake We Drained Into Desert

Aral Sea: The Lake We Drained Into Desert

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How does the world’s fourth-largest lake vanish without anyone pulling a plug? Discover how Soviet irrigation diverted the rivers feeding the Aral Sea, turning a thriving fishing region into desert—and why a small part of the lake is coming back. Listen now for the full story of the engineering decision that reshaped water, health, and life across Central Asia.

The Aral Sea was once the world’s fourth-largest lake. In this episode, we trace how Soviet irrigation diverted the Amu Darya and Syr Darya, shrinking the lake into saline basins and desert—and how Kazakhstan’s Kokaral Dam helped restore part of the Northern Aral Sea.

Key takeaways:
• Irrigation, not natural drying alone, drove the Aral Sea’s collapse.
• Falling water levels concentrated salt, killing fish and destroying fishing communities.
• The exposed seabed now contributes to salt and dust storms across Central Asia.
• Health effects are linked to contaminated dust, water scarcity, poor nutrition, stress, and limited healthcare.
• The Northern Aral shows that carefully targeted engineering can support ecological recovery.

How the Aral Sea became a lake-sized problem

The rivers diverted for cotton

When fish, ports, and livelihoods disappeared

The Kokaral Dam and partial recovery

Related resources:
• [Annual Review: The Aral Sea Disaster](https://www.annualreviews.org/content/journals/10.1146/annurev.earth.35.031306.140120)
• [World Bank: Saving a Corner of the Aral Sea](https://www.worldbank.org/en/results/2005/09/01/saving-a-corner-of-the-aral-sea)
• [More episodes on water and climate](/episodes/water-and-climate)
• [Browse the full episode archive](/episodes)

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