When the Aral Sea Dried Up, Central Asia Became Dustier
https://eos.org/research-spotlights/when-the-aral-sea-dried-up-central-asia-became-dustier By Saima May Sidik , Eos/AGU. Excerpt: In 1959, officials in the Soviet Union decided to divert river flows feeding the Aral Sea to the deserts of Central Asia, where the water irrigated farms supplying a growing cotton industry . As the cotton blossomed, the lake’s level dropped. Today, only slivers remain of what was once the world’s fourth largest lake. As the Aral Sea has become a desert, known as the Aralkum, soil from the dry lake bed has added to the dust that swirls above Central Asia . This dust carries hazards beyond those typically associated with natural particulate matter: It’s mixed with salt as well as residues from agricultural pesticides and fertilizers introduced into the sea. How much and where dust from the former Aral Sea spreads across the surrounding region are therefore important public health questions. In a new study, Banks ...