Freshwater vs salt lakes
A simple guide to salinity, endorheic basins, inflow, outflow, evaporation, and mineral concentration.

Freshwater vs salt lakes
Freshwater and salt lakes are shaped by inflow, outflow, evaporation, minerals, climate, and basin shape. A lake with no outlet can become salty as water evaporates and dissolved minerals remain.
Some lakes change salinity over time. Others vary from one part of the lake to another. A good guide should avoid oversimplifying water chemistry.
This article gives visitors the basic logic before individual lake pages add source-backed details.
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