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The city has endorsed a $2 billion plan to wall off the historic downtown from rising seas and surging storms. It is the latest in a growing number of expensive seawalls and barriers being proposed to defend U.S. coastal cities.
A multi-partner water recycling project is helping Monterey, Calif., stabilize and replenish its dwindling groundwater supply. The project could serve as a model for shrinking aquifers in other regions of the country.
Ellicott City, Md., has been devastated twice by flooding rivers that traverse the city. But one man has built a homemade warning system he hopes will save property and lives the next time the flood waters rise.