A three-story-tall gate creaks open, and reveals a warehouse filled to the brim with brown crystals. It’s a mountain of rock salt. “We filled this shed this past week,” says T.J. Shea ...

The vast majority—97 percent—of the earth’s water is salt water found in our oceans. Another two percent is stored in ice caps or glaciers. That leaves just one percent of all water on earth for ...

Salt water from the Gulf of Mexico is creeping up the drought-stricken Mississippi River and threatening drinking water supplies in some Louisiana communities. With little precipitation in the ...

The Milwaukee River and Lake Michigan source drinking water for about a million people in southeast Wisconsin. Researchers say salt from winter storms is seeping into it and, ultimately, into your ...