Are the Great Lakes really “unsalted and shark-free” ?
A popular vehicle decal says the Great Lakes are “unsalted and shark-free.” Is it true? Not if you consider road salt and salt from water softeners. In 2021, scientific researchers estimated chlorides in Lake Michigan had risen from about 1-2 milligrams per liter before European settlement to more than fifteen milligrams per liter. Canadian researchers… Read more »