Rivers and streams becoming saltier

https://www.washingtonpost.com/news/energy-environment/wp/2018/01/08/the-nations-rivers-and-streams-are-getting-dangerously-saltier/?utm_term=.28e2bb3e6dbb Interesting, I recently wrote about the change of water's freezing and melting point based on salinity; as more ice melts in the arctic, the less saltier the water in the oceans becomes. Now we find that rivers and streams are becoming more saltier, therefore doing the reverse that supposed climate change would do, in that the freezing/melting point of water would go down, which means that reflectivity goes down for rivers and streams.