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Environment
Babak Zolghadr-Asli, QUEX Joint PhD Candidate, Centre for Water Systems, University of Exeter, and Sustainable Minerals Institute, The University of Queensland

Why saline lakes are the canary in the coalmine for the world’s water resources

NASA Earth Observatory image, CC BY

When it comes to inland surface water bodies, saline lakes are unique. They make up 44% of all lakes worldwide and are found on every continent including Antarctica. These lakes’ existence depends on a delicate balance between a river basin’s water input (precipitation and inflows) and output (evaporation and seepage).

The reason a lake turns saline is often because it doesn’t have a consistent stream outlet, leading to a build-up of dissolved salts from water inflows. The water levels of saline lakes are naturally unstable and these lakes are generally susceptible to any disturbance.

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