After years of draining and destryong them, communities are discovering the value wetlands provide against storm surges and pollution. The city of Arcata, California, uses an artificial wetland system as a sewage-treatment facility. Wastewater is pumped into a series of wetlands where, over time, naturally occurring bacteria and plants cleanse the polluted water. This sewage treatment also happens to be a thriving plant and wildlife refuge.

Photograph by Ruth Miller, MyShot
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wetland
wetland Encyclopedic Entry

Best For
6-12+

Subjects
Religion, Geography, Science

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Encyclopedic entry. A wetland is an area of land that is either covered by water or saturated with water.