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Name: Renata
Status: Student
Age: 12
Location: N/A
Country: N/A
Date: N/A 

Due to melting icebergs, I understand that the Great Lakes are becomming salty. Is this true? Why? Thank you very much for your time and trouble. Renata

The Great Lakes in recent history may have become saltier than they were in the past, but there is not enough evidence yet to say that it is caused by global warming (or melting polar icecaps). The increase in salt concentrations for now is likely a result of lower rainfall and snowfall in the areas around the lakes. All fresh water has some salt in it, and the more a lake dries out, the saltier it gets.

Donald Yee

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