Parts of North America are poised to become “hotspots of water scarcity” within decades, partly because pollutants will make some water sources harder to use, scientists warned on Tuesday, urging ...
The downtown skyline of Des Moines is seen in the background of the Des Moines River. Credit: Phil Roeder/CC BY 2.0 Des Moines, Iowa, is a sprawling metro area of 740,000 people surrounded by ...
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