As the Mississippi River plunges, the Army Corps is building a 1,500-foot-wide levee to keep salt water out of drinking water
By Rachel Ramirez, CNN The US Army Corps of Engineers has launched construction on a 1,500-foot-wide underwater levee in the Mississippi River to prevent saltwater from pushing up the river amid record-low river levels and flow rates. While drought in the US becomes more frequent and intense, sea level is rising along the coasts. These
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