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  • All fields: 2006-05-12
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    • Litter in National Willdlife Refuge

    • Litter in National Willdlife Refuge
    • Environmental Sciences; Contaminants; Environmental quality; Habitat conservation; Human impacts; Pollutants; Wildlife refuges;
    • Trash is sometimes dumped on national wildlife refuges. Here is an example of where people have dumped household refuse at a refuge. This requires additional resources to clean up an haul away these materials.
    • Salt marsh

    • Salt marsh
    • Aquatic plants; Coastal environments; Environments (Natural); Wetlands;
    • Scenic view of salt marsh wetlands and spartina grass in Savannah, Georgia.
    • Over-grazed cattle pasture

    • Over-grazed cattle pasture
    • Environmental Sciences; Agricultural ecosystems; Agriculture; Animal industry; Farms and farming; Mammals; Overgrazing; Ranching;
    • Large herd of cattle on rocky hillside of over-grazed pasture with fence in foreground protecting more lush plant growth.
    • Geyser runoff

    • Geyser runoff
    • Geothermal areas; Water pollution;
    • Different colored algae and dead tree stump in geyser runoff water in Yellowstone National Park.

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