How Salt Is Threatening Our Drinking Water

Increasing levels of a common mineral is becoming a threat to source water quality, as well as the plants, animals, and humans who count on it.

“At least a third of the rivers and streams in the country have gotten saltier in the past 25 years,” Scientific American reported. “And by 2100, more than half of them may contain at least 50% more salt than they used to. Increasing salinity will not just affect freshwater plants and animals but human lives as well — notably, by affecting drinking water.”