Seabirds help shape coastal islands by fertilizing plants with nutrient-rich guano, which boosts vegetation that traps sand and builds dunes.
In some places, sand dunes protect shorelines from the onslaught of ocean waves. In other places, the dunes themselves are on the move, and threaten human structures. Host Flora Lichtman talks with ...
Nearly 30 acres of native dunes are being planted along Santa Monica Beach to buffer sea-level rise and boost habitat.
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